Home / 5,611.83-8,406.97-3,139.15

Finding the Fourth Proportional to 5,611.83, 8,406.97 and 3,139.15

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Solution

The fourth proportional to 5,611.83, 8,406.97 and 3,139.15 is: 4,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.83 : 8,406.97 = 3,139.15 : x
  2. Step 2: Convert to fraction form
    5,611.83/8,406.97 = 3,139.15/x
  3. Step 3: Cross multiply
    5,611.83x = 8,406.97 × 3,139.15
  4. Step 4: Simplify right side
    5,611.83x = 26,390,724.18
  5. Step 5: Solve for x
    x = 26,390,724.18/5,611.83
  6. Step 6: Final answer
    x = 4,702.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.