Home / 1,609.77-2,220.95-1,112.23

Finding the Fourth Proportional to 1,609.77, 2,220.95 and 1,112.23

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Solution

The fourth proportional to 1,609.77, 2,220.95 and 1,112.23 is: 1,534.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.77 : 2,220.95 = 1,112.23 : x
  2. Step 2: Convert to fraction form
    1,609.77/2,220.95 = 1,112.23/x
  3. Step 3: Cross multiply
    1,609.77x = 2,220.95 × 1,112.23
  4. Step 4: Simplify right side
    1,609.77x = 2,470,196.11
  5. Step 5: Solve for x
    x = 2,470,196.11/1,609.77
  6. Step 6: Final answer
    x = 1,534.50

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.