Home / 5,423.17-8,127.46-2,135.38

Finding the Fourth Proportional to 5,423.17, 8,127.46 and 2,135.38

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Solution

The fourth proportional to 5,423.17, 8,127.46 and 2,135.38 is: 3,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.17 : 8,127.46 = 2,135.38 : x
  2. Step 2: Convert to fraction form
    5,423.17/8,127.46 = 2,135.38/x
  3. Step 3: Cross multiply
    5,423.17x = 8,127.46 × 2,135.38
  4. Step 4: Simplify right side
    5,423.17x = 17,355,215.53
  5. Step 5: Solve for x
    x = 17,355,215.53/5,423.17
  6. Step 6: Final answer
    x = 3,200.20

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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.