Home / 7,415.46-11,119.95-2,220.12

Finding the Fourth Proportional to 7,415.46, 11,119.95 and 2,220.12

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Solution

The fourth proportional to 7,415.46, 11,119.95 and 2,220.12 is: 3,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.46 : 11,119.95 = 2,220.12 : x
  2. Step 2: Convert to fraction form
    7,415.46/11,119.95 = 2,220.12/x
  3. Step 3: Cross multiply
    7,415.46x = 11,119.95 × 2,220.12
  4. Step 4: Simplify right side
    7,415.46x = 24,687,623.39
  5. Step 5: Solve for x
    x = 24,687,623.39/7,415.46
  6. Step 6: Final answer
    x = 3,329.21

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Double scale
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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.