Home / 5,275.60-7,914.65-1,577.78

Finding the Fourth Proportional to 5,275.60, 7,914.65 and 1,577.78

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Solution

The fourth proportional to 5,275.60, 7,914.65 and 1,577.78 is: 2,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.60 : 7,914.65 = 1,577.78 : x
  2. Step 2: Convert to fraction form
    5,275.60/7,914.65 = 1,577.78/x
  3. Step 3: Cross multiply
    5,275.60x = 7,914.65 × 1,577.78
  4. Step 4: Simplify right side
    5,275.60x = 12,487,558.69
  5. Step 5: Solve for x
    x = 12,487,558.69/5,275.60
  6. Step 6: Final answer
    x = 2,367.04

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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.