Home / 2,487.83-3,432.67-1,439.29

Finding the Fourth Proportional to 2,487.83, 3,432.67 and 1,439.29

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Solution

The fourth proportional to 2,487.83, 3,432.67 and 1,439.29 is: 1,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.83 : 3,432.67 = 1,439.29 : x
  2. Step 2: Convert to fraction form
    2,487.83/3,432.67 = 1,439.29/x
  3. Step 3: Cross multiply
    2,487.83x = 3,432.67 × 1,439.29
  4. Step 4: Simplify right side
    2,487.83x = 4,940,586.84
  5. Step 5: Solve for x
    x = 4,940,586.84/2,487.83
  6. Step 6: Final answer
    x = 1,985.90

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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.