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Finding the Fourth Proportional to 1,041.50, 1,562.25 and 631.10

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Solution

The fourth proportional to 1,041.50, 1,562.25 and 631.10 is: 946.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.50 : 1,562.25 = 631.10 : x
  2. Step 2: Convert to fraction form
    1,041.50/1,562.25 = 631.10/x
  3. Step 3: Cross multiply
    1,041.50x = 1,562.25 × 631.10
  4. Step 4: Simplify right side
    1,041.50x = 985,935.98
  5. Step 5: Solve for x
    x = 985,935.98/1,041.50
  6. Step 6: Final answer
    x = 946.65

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Double scale
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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.