Home / 5,490.43-8,234.59-1,487.74

Finding the Fourth Proportional to 5,490.43, 8,234.59 and 1,487.74

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Solution

The fourth proportional to 5,490.43, 8,234.59 and 1,487.74 is: 2,231.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.43 : 8,234.59 = 1,487.74 : x
  2. Step 2: Convert to fraction form
    5,490.43/8,234.59 = 1,487.74/x
  3. Step 3: Cross multiply
    5,490.43x = 8,234.59 × 1,487.74
  4. Step 4: Simplify right side
    5,490.43x = 12,250,928.93
  5. Step 5: Solve for x
    x = 12,250,928.93/5,490.43
  6. Step 6: Final answer
    x = 2,231.32

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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.