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Finding the Fourth Proportional to 3,253.71, 4,875.53 and 1,520.31

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Solution

The fourth proportional to 3,253.71, 4,875.53 and 1,520.31 is: 2,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.71 : 4,875.53 = 1,520.31 : x
  2. Step 2: Convert to fraction form
    3,253.71/4,875.53 = 1,520.31/x
  3. Step 3: Cross multiply
    3,253.71x = 4,875.53 × 1,520.31
  4. Step 4: Simplify right side
    3,253.71x = 7,412,309.41
  5. Step 5: Solve for x
    x = 7,412,309.41/3,253.71
  6. Step 6: Final answer
    x = 2,278.11

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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.