Home / 5,147.20-7,098.72-4,026.40

Finding the Fourth Proportional to 5,147.20, 7,098.72 and 4,026.40

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Solution

The fourth proportional to 5,147.20, 7,098.72 and 4,026.40 is: 5,552.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.20 : 7,098.72 = 4,026.40 : x
  2. Step 2: Convert to fraction form
    5,147.20/7,098.72 = 4,026.40/x
  3. Step 3: Cross multiply
    5,147.20x = 7,098.72 × 4,026.40
  4. Step 4: Simplify right side
    5,147.20x = 28,582,286.21
  5. Step 5: Solve for x
    x = 28,582,286.21/5,147.20
  6. Step 6: Final answer
    x = 5,552.98

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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.