Home / 5,382.90-8,074.26-1,487.30

Finding the Fourth Proportional to 5,382.90, 8,074.26 and 1,487.30

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Solution

The fourth proportional to 5,382.90, 8,074.26 and 1,487.30 is: 2,230.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.90 : 8,074.26 = 1,487.30 : x
  2. Step 2: Convert to fraction form
    5,382.90/8,074.26 = 1,487.30/x
  3. Step 3: Cross multiply
    5,382.90x = 8,074.26 × 1,487.30
  4. Step 4: Simplify right side
    5,382.90x = 12,008,806.53
  5. Step 5: Solve for x
    x = 12,008,806.53/5,382.90
  6. Step 6: Final answer
    x = 2,230.92

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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.