Home / 5,275.55-7,913.39-1,379.85

Finding the Fourth Proportional to 5,275.55, 7,913.39 and 1,379.85

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Solution

The fourth proportional to 5,275.55, 7,913.39 and 1,379.85 is: 2,069.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.55 : 7,913.39 = 1,379.85 : x
  2. Step 2: Convert to fraction form
    5,275.55/7,913.39 = 1,379.85/x
  3. Step 3: Cross multiply
    5,275.55x = 7,913.39 × 1,379.85
  4. Step 4: Simplify right side
    5,275.55x = 10,919,284.29
  5. Step 5: Solve for x
    x = 10,919,284.29/5,275.55
  6. Step 6: Final answer
    x = 2,069.79

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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.