Home / 7,415.10-11,122.65-2,220.96

Finding the Fourth Proportional to 7,415.10, 11,122.65 and 2,220.96

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Solution

The fourth proportional to 7,415.10, 11,122.65 and 2,220.96 is: 3,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.10 : 11,122.65 = 2,220.96 : x
  2. Step 2: Convert to fraction form
    7,415.10/11,122.65 = 2,220.96/x
  3. Step 3: Cross multiply
    7,415.10x = 11,122.65 × 2,220.96
  4. Step 4: Simplify right side
    7,415.10x = 24,702,960.74
  5. Step 5: Solve for x
    x = 24,702,960.74/7,415.10
  6. Step 6: Final answer
    x = 3,331.44

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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.