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Finding the Fourth Proportional to 4,663.50, 6,995.28 and 1,200.78

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Solution

The fourth proportional to 4,663.50, 6,995.28 and 1,200.78 is: 1,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,663.50 : 6,995.28 = 1,200.78 : x
  2. Step 2: Convert to fraction form
    4,663.50/6,995.28 = 1,200.78/x
  3. Step 3: Cross multiply
    4,663.50x = 6,995.28 × 1,200.78
  4. Step 4: Simplify right side
    4,663.50x = 8,399,792.32
  5. Step 5: Solve for x
    x = 8,399,792.32/4,663.50
  6. Step 6: Final answer
    x = 1,801.18

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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.