Home / 6,123.29-8,438.28-4,130.39

Finding the Fourth Proportional to 6,123.29, 8,438.28 and 4,130.39

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Solution

The fourth proportional to 6,123.29, 8,438.28 and 4,130.39 is: 5,691.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,123.29 : 8,438.28 = 4,130.39 : x
  2. Step 2: Convert to fraction form
    6,123.29/8,438.28 = 4,130.39/x
  3. Step 3: Cross multiply
    6,123.29x = 8,438.28 × 4,130.39
  4. Step 4: Simplify right side
    6,123.29x = 34,853,345.14
  5. Step 5: Solve for x
    x = 34,853,345.14/6,123.29
  6. Step 6: Final answer
    x = 5,691.94

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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.