Home / 6,139.20-8,473-3,486.04

Finding the Fourth Proportional to 6,139.20, 8,473 and 3,486.04

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Solution

The fourth proportional to 6,139.20, 8,473 and 3,486.04 is: 4,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.20 : 8,473 = 3,486.04 : x
  2. Step 2: Convert to fraction form
    6,139.20/8,473 = 3,486.04/x
  3. Step 3: Cross multiply
    6,139.20x = 8,473 × 3,486.04
  4. Step 4: Simplify right side
    6,139.20x = 29,537,216.92
  5. Step 5: Solve for x
    x = 29,537,216.92/6,139.20
  6. Step 6: Final answer
    x = 4,811.25

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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.