Home / 6,225.78-8,589.18-3,987.30

Finding the Fourth Proportional to 6,225.78, 8,589.18 and 3,987.30

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Solution

The fourth proportional to 6,225.78, 8,589.18 and 3,987.30 is: 5,500.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,225.78 : 8,589.18 = 3,987.30 : x
  2. Step 2: Convert to fraction form
    6,225.78/8,589.18 = 3,987.30/x
  3. Step 3: Cross multiply
    6,225.78x = 8,589.18 × 3,987.30
  4. Step 4: Simplify right side
    6,225.78x = 34,247,637.41
  5. Step 5: Solve for x
    x = 34,247,637.41/6,225.78
  6. Step 6: Final answer
    x = 5,500.94

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Double scale
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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.