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Finding the Fourth Proportional to 1,100.45, 1,650.68 and 552.50

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Solution

The fourth proportional to 1,100.45, 1,650.68 and 552.50 is: 828.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100.45 : 1,650.68 = 552.50 : x
  2. Step 2: Convert to fraction form
    1,100.45/1,650.68 = 552.50/x
  3. Step 3: Cross multiply
    1,100.45x = 1,650.68 × 552.50
  4. Step 4: Simplify right side
    1,100.45x = 912,007.23
  5. Step 5: Solve for x
    x = 912,007.23/1,100.45
  6. Step 6: Final answer
    x = 828.76

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.