Home / 5,275.92-7,913.88-1,380.36

Finding the Fourth Proportional to 5,275.92, 7,913.88 and 1,380.36

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Solution

The fourth proportional to 5,275.92, 7,913.88 and 1,380.36 is: 2,070.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.92 : 7,913.88 = 1,380.36 : x
  2. Step 2: Convert to fraction form
    5,275.92/7,913.88 = 1,380.36/x
  3. Step 3: Cross multiply
    5,275.92x = 7,913.88 × 1,380.36
  4. Step 4: Simplify right side
    5,275.92x = 10,924,003.40
  5. Step 5: Solve for x
    x = 10,924,003.40/5,275.92
  6. Step 6: Final answer
    x = 2,070.54

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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.