Home / 7,420.50-11,130.75-2,226.38

Finding the Fourth Proportional to 7,420.50, 11,130.75 and 2,226.38

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Solution

The fourth proportional to 7,420.50, 11,130.75 and 2,226.38 is: 3,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.50 : 11,130.75 = 2,226.38 : x
  2. Step 2: Convert to fraction form
    7,420.50/11,130.75 = 2,226.38/x
  3. Step 3: Cross multiply
    7,420.50x = 11,130.75 × 2,226.38
  4. Step 4: Simplify right side
    7,420.50x = 24,781,223.53
  5. Step 5: Solve for x
    x = 24,781,223.53/7,420.50
  6. Step 6: Final answer
    x = 3,339.56

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Half scale
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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.