Home / 5,115.65-7,672.57-1,416.96

Finding the Fourth Proportional to 5,115.65, 7,672.57 and 1,416.96

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Solution

The fourth proportional to 5,115.65, 7,672.57 and 1,416.96 is: 2,125.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.65 : 7,672.57 = 1,416.96 : x
  2. Step 2: Convert to fraction form
    5,115.65/7,672.57 = 1,416.96/x
  3. Step 3: Cross multiply
    5,115.65x = 7,672.57 × 1,416.96
  4. Step 4: Simplify right side
    5,115.65x = 10,871,724.79
  5. Step 5: Solve for x
    x = 10,871,724.79/5,115.65
  6. Step 6: Final answer
    x = 2,125.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.