Home / 6,181.20-8,531.40-4,085.52

Finding the Fourth Proportional to 6,181.20, 8,531.40 and 4,085.52

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Solution

The fourth proportional to 6,181.20, 8,531.40 and 4,085.52 is: 5,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,181.20 : 8,531.40 = 4,085.52 : x
  2. Step 2: Convert to fraction form
    6,181.20/8,531.40 = 4,085.52/x
  3. Step 3: Cross multiply
    6,181.20x = 8,531.40 × 4,085.52
  4. Step 4: Simplify right side
    6,181.20x = 34,855,205.33
  5. Step 5: Solve for x
    x = 34,855,205.33/6,181.20
  6. Step 6: Final answer
    x = 5,638.91

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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.