Home / 5,439.13-8,159.27-2,319.47

Finding the Fourth Proportional to 5,439.13, 8,159.27 and 2,319.47

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Solution

The fourth proportional to 5,439.13, 8,159.27 and 2,319.47 is: 3,479.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.13 : 8,159.27 = 2,319.47 : x
  2. Step 2: Convert to fraction form
    5,439.13/8,159.27 = 2,319.47/x
  3. Step 3: Cross multiply
    5,439.13x = 8,159.27 × 2,319.47
  4. Step 4: Simplify right side
    5,439.13x = 18,925,144.89
  5. Step 5: Solve for x
    x = 18,925,144.89/5,439.13
  6. Step 6: Final answer
    x = 3,479.44

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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.