Home / 6,139.30-8,479.34-4,468.20

Finding the Fourth Proportional to 6,139.30, 8,479.34 and 4,468.20

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Solution

The fourth proportional to 6,139.30, 8,479.34 and 4,468.20 is: 6,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.30 : 8,479.34 = 4,468.20 : x
  2. Step 2: Convert to fraction form
    6,139.30/8,479.34 = 4,468.20/x
  3. Step 3: Cross multiply
    6,139.30x = 8,479.34 × 4,468.20
  4. Step 4: Simplify right side
    6,139.30x = 37,887,386.99
  5. Step 5: Solve for x
    x = 37,887,386.99/6,139.30
  6. Step 6: Final answer
    x = 6,171.29

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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.