Home / 5,615.12-8,422.44-1,511.12

Finding the Fourth Proportional to 5,615.12, 8,422.44 and 1,511.12

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Solution

The fourth proportional to 5,615.12, 8,422.44 and 1,511.12 is: 2,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.12 : 8,422.44 = 1,511.12 : x
  2. Step 2: Convert to fraction form
    5,615.12/8,422.44 = 1,511.12/x
  3. Step 3: Cross multiply
    5,615.12x = 8,422.44 × 1,511.12
  4. Step 4: Simplify right side
    5,615.12x = 12,727,317.53
  5. Step 5: Solve for x
    x = 12,727,317.53/5,615.12
  6. Step 6: Final answer
    x = 2,266.62

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Double scale
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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.