Home / 5,158.40-7,740.16-3,426.56

Finding the Fourth Proportional to 5,158.40, 7,740.16 and 3,426.56

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Solution

The fourth proportional to 5,158.40, 7,740.16 and 3,426.56 is: 5,141.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.40 : 7,740.16 = 3,426.56 : x
  2. Step 2: Convert to fraction form
    5,158.40/7,740.16 = 3,426.56/x
  3. Step 3: Cross multiply
    5,158.40x = 7,740.16 × 3,426.56
  4. Step 4: Simplify right side
    5,158.40x = 26,522,122.65
  5. Step 5: Solve for x
    x = 26,522,122.65/5,158.40
  6. Step 6: Final answer
    x = 5,141.54

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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.