Home / 5,439.72-8,159.56-1,543.62

Finding the Fourth Proportional to 5,439.72, 8,159.56 and 1,543.62

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Solution

The fourth proportional to 5,439.72, 8,159.56 and 1,543.62 is: 2,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.72 : 8,159.56 = 1,543.62 : x
  2. Step 2: Convert to fraction form
    5,439.72/8,159.56 = 1,543.62/x
  3. Step 3: Cross multiply
    5,439.72x = 8,159.56 × 1,543.62
  4. Step 4: Simplify right side
    5,439.72x = 12,595,260.01
  5. Step 5: Solve for x
    x = 12,595,260.01/5,439.72
  6. Step 6: Final answer
    x = 2,315.42

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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.