Home / 7,424.60-11,136.90-3,045.20

Finding the Fourth Proportional to 7,424.60, 11,136.90 and 3,045.20

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Solution

The fourth proportional to 7,424.60, 11,136.90 and 3,045.20 is: 4,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.60 : 11,136.90 = 3,045.20 : x
  2. Step 2: Convert to fraction form
    7,424.60/11,136.90 = 3,045.20/x
  3. Step 3: Cross multiply
    7,424.60x = 11,136.90 × 3,045.20
  4. Step 4: Simplify right side
    7,424.60x = 33,914,087.88
  5. Step 5: Solve for x
    x = 33,914,087.88/7,424.60
  6. Step 6: Final answer
    x = 4,567.80

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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.