Home / 5,151.60-7,114.01-4,143.45

Finding the Fourth Proportional to 5,151.60, 7,114.01 and 4,143.45

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Solution

The fourth proportional to 5,151.60, 7,114.01 and 4,143.45 is: 5,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.60 : 7,114.01 = 4,143.45 : x
  2. Step 2: Convert to fraction form
    5,151.60/7,114.01 = 4,143.45/x
  3. Step 3: Cross multiply
    5,151.60x = 7,114.01 × 4,143.45
  4. Step 4: Simplify right side
    5,151.60x = 29,476,544.73
  5. Step 5: Solve for x
    x = 29,476,544.73/5,151.60
  6. Step 6: Final answer
    x = 5,721.83

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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.