Home / 5,475.60-8,214.75-1,580.31

Finding the Fourth Proportional to 5,475.60, 8,214.75 and 1,580.31

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Solution

The fourth proportional to 5,475.60, 8,214.75 and 1,580.31 is: 2,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.60 : 8,214.75 = 1,580.31 : x
  2. Step 2: Convert to fraction form
    5,475.60/8,214.75 = 1,580.31/x
  3. Step 3: Cross multiply
    5,475.60x = 8,214.75 × 1,580.31
  4. Step 4: Simplify right side
    5,475.60x = 12,981,851.57
  5. Step 5: Solve for x
    x = 12,981,851.57/5,475.60
  6. Step 6: Final answer
    x = 2,370.85

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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.