Home / 5,423.42-8,132.14-1,913.11

Finding the Fourth Proportional to 5,423.42, 8,132.14 and 1,913.11

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Solution

The fourth proportional to 5,423.42, 8,132.14 and 1,913.11 is: 2,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.42 : 8,132.14 = 1,913.11 : x
  2. Step 2: Convert to fraction form
    5,423.42/8,132.14 = 1,913.11/x
  3. Step 3: Cross multiply
    5,423.42x = 8,132.14 × 1,913.11
  4. Step 4: Simplify right side
    5,423.42x = 15,557,693.04
  5. Step 5: Solve for x
    x = 15,557,693.04/5,423.42
  6. Step 6: Final answer
    x = 2,868.61

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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.