Home / 5,115.42-7,671.90-3,471.53

Finding the Fourth Proportional to 5,115.42, 7,671.90 and 3,471.53

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Solution

The fourth proportional to 5,115.42, 7,671.90 and 3,471.53 is: 5,206.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.42 : 7,671.90 = 3,471.53 : x
  2. Step 2: Convert to fraction form
    5,115.42/7,671.90 = 3,471.53/x
  3. Step 3: Cross multiply
    5,115.42x = 7,671.90 × 3,471.53
  4. Step 4: Simplify right side
    5,115.42x = 26,633,192.65
  5. Step 5: Solve for x
    x = 26,633,192.65/5,115.42
  6. Step 6: Final answer
    x = 5,206.45

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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.