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Finding the Fourth Proportional to 3,245.59, 4,478.92 and 1,753.51

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Solution

The fourth proportional to 3,245.59, 4,478.92 and 1,753.51 is: 2,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.59 : 4,478.92 = 1,753.51 : x
  2. Step 2: Convert to fraction form
    3,245.59/4,478.92 = 1,753.51/x
  3. Step 3: Cross multiply
    3,245.59x = 4,478.92 × 1,753.51
  4. Step 4: Simplify right side
    3,245.59x = 7,853,831.01
  5. Step 5: Solve for x
    x = 7,853,831.01/3,245.59
  6. Step 6: Final answer
    x = 2,419.85

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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.