Home / 6,005.92-8,291.28-4,139.68

Finding the Fourth Proportional to 6,005.92, 8,291.28 and 4,139.68

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Solution

The fourth proportional to 6,005.92, 8,291.28 and 4,139.68 is: 5,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,005.92 : 8,291.28 = 4,139.68 : x
  2. Step 2: Convert to fraction form
    6,005.92/8,291.28 = 4,139.68/x
  3. Step 3: Cross multiply
    6,005.92x = 8,291.28 × 4,139.68
  4. Step 4: Simplify right side
    6,005.92x = 34,323,245.99
  5. Step 5: Solve for x
    x = 34,323,245.99/6,005.92
  6. Step 6: Final answer
    x = 5,714.90

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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.