Home / 6,422.05-8,862.15-3,589.21

Finding the Fourth Proportional to 6,422.05, 8,862.15 and 3,589.21

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Solution

The fourth proportional to 6,422.05, 8,862.15 and 3,589.21 is: 4,952.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,422.05 : 8,862.15 = 3,589.21 : x
  2. Step 2: Convert to fraction form
    6,422.05/8,862.15 = 3,589.21/x
  3. Step 3: Cross multiply
    6,422.05x = 8,862.15 × 3,589.21
  4. Step 4: Simplify right side
    6,422.05x = 31,808,117.40
  5. Step 5: Solve for x
    x = 31,808,117.40/6,422.05
  6. Step 6: Final answer
    x = 4,952.95

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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.