Home / 5,317.78-7,339.12-3,079.62

Finding the Fourth Proportional to 5,317.78, 7,339.12 and 3,079.62

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Solution

The fourth proportional to 5,317.78, 7,339.12 and 3,079.62 is: 4,250.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.78 : 7,339.12 = 3,079.62 : x
  2. Step 2: Convert to fraction form
    5,317.78/7,339.12 = 3,079.62/x
  3. Step 3: Cross multiply
    5,317.78x = 7,339.12 × 3,079.62
  4. Step 4: Simplify right side
    5,317.78x = 22,601,700.73
  5. Step 5: Solve for x
    x = 22,601,700.73/5,317.78
  6. Step 6: Final answer
    x = 4,250.21

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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.