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Finding the Fourth Proportional to 2,472.77, 3,412.37 and 1,353.68

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Solution

The fourth proportional to 2,472.77, 3,412.37 and 1,353.68 is: 1,868.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.77 : 3,412.37 = 1,353.68 : x
  2. Step 2: Convert to fraction form
    2,472.77/3,412.37 = 1,353.68/x
  3. Step 3: Cross multiply
    2,472.77x = 3,412.37 × 1,353.68
  4. Step 4: Simplify right side
    2,472.77x = 4,619,233.19
  5. Step 5: Solve for x
    x = 4,619,233.19/2,472.77
  6. Step 6: Final answer
    x = 1,868.04

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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.