Home / 6,139.59-8,472.68-3,345.09

Finding the Fourth Proportional to 6,139.59, 8,472.68 and 3,345.09

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Solution

The fourth proportional to 6,139.59, 8,472.68 and 3,345.09 is: 4,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.59 : 8,472.68 = 3,345.09 : x
  2. Step 2: Convert to fraction form
    6,139.59/8,472.68 = 3,345.09/x
  3. Step 3: Cross multiply
    6,139.59x = 8,472.68 × 3,345.09
  4. Step 4: Simplify right side
    6,139.59x = 28,341,877.14
  5. Step 5: Solve for x
    x = 28,341,877.14/6,139.59
  6. Step 6: Final answer
    x = 4,616.25

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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.