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Finding the Fourth Proportional to 4,415.98, 6,623.98 and 1,129.14

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Solution

The fourth proportional to 4,415.98, 6,623.98 and 1,129.14 is: 1,693.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.98 : 6,623.98 = 1,129.14 : x
  2. Step 2: Convert to fraction form
    4,415.98/6,623.98 = 1,129.14/x
  3. Step 3: Cross multiply
    4,415.98x = 6,623.98 × 1,129.14
  4. Step 4: Simplify right side
    4,415.98x = 7,479,400.78
  5. Step 5: Solve for x
    x = 7,479,400.78/4,415.98
  6. Step 6: Final answer
    x = 1,693.71

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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.