Home / 5,160.27-7,120.47-3,034.55

Finding the Fourth Proportional to 5,160.27, 7,120.47 and 3,034.55

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Solution

The fourth proportional to 5,160.27, 7,120.47 and 3,034.55 is: 4,187.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.27 : 7,120.47 = 3,034.55 : x
  2. Step 2: Convert to fraction form
    5,160.27/7,120.47 = 3,034.55/x
  3. Step 3: Cross multiply
    5,160.27x = 7,120.47 × 3,034.55
  4. Step 4: Simplify right side
    5,160.27x = 21,607,451.42
  5. Step 5: Solve for x
    x = 21,607,451.42/5,160.27
  6. Step 6: Final answer
    x = 4,187.27

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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.