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Finding the Fourth Proportional to 1,472.09, 2,208.14 and 432.12

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Solution

The fourth proportional to 1,472.09, 2,208.14 and 432.12 is: 648.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.09 : 2,208.14 = 432.12 : x
  2. Step 2: Convert to fraction form
    1,472.09/2,208.14 = 432.12/x
  3. Step 3: Cross multiply
    1,472.09x = 2,208.14 × 432.12
  4. Step 4: Simplify right side
    1,472.09x = 954,181.46
  5. Step 5: Solve for x
    x = 954,181.46/1,472.09
  6. Step 6: Final answer
    x = 648.18

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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.