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Finding the Fourth Proportional to 2,472.15, 3,708.24 and 740.79

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Solution

The fourth proportional to 2,472.15, 3,708.24 and 740.79 is: 1,111.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.15 : 3,708.24 = 740.79 : x
  2. Step 2: Convert to fraction form
    2,472.15/3,708.24 = 740.79/x
  3. Step 3: Cross multiply
    2,472.15x = 3,708.24 × 740.79
  4. Step 4: Simplify right side
    2,472.15x = 2,747,027.11
  5. Step 5: Solve for x
    x = 2,747,027.11/2,472.15
  6. Step 6: Final answer
    x = 1,111.19

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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.