Home / 5,429.20-8,143.80-4,611.10

Finding the Fourth Proportional to 5,429.20, 8,143.80 and 4,611.10

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Solution

The fourth proportional to 5,429.20, 8,143.80 and 4,611.10 is: 6,916.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.20 : 8,143.80 = 4,611.10 : x
  2. Step 2: Convert to fraction form
    5,429.20/8,143.80 = 4,611.10/x
  3. Step 3: Cross multiply
    5,429.20x = 8,143.80 × 4,611.10
  4. Step 4: Simplify right side
    5,429.20x = 37,551,876.18
  5. Step 5: Solve for x
    x = 37,551,876.18/5,429.20
  6. Step 6: Final answer
    x = 6,916.65

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Similar ratio
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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.