Home / 3,487.60-5,230.80-1,295.20

Finding the Fourth Proportional to 3,487.60, 5,230.80 and 1,295.20

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Solution

The fourth proportional to 3,487.60, 5,230.80 and 1,295.20 is: 1,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.60 : 5,230.80 = 1,295.20 : x
  2. Step 2: Convert to fraction form
    3,487.60/5,230.80 = 1,295.20/x
  3. Step 3: Cross multiply
    3,487.60x = 5,230.80 × 1,295.20
  4. Step 4: Simplify right side
    3,487.60x = 6,774,932.16
  5. Step 5: Solve for x
    x = 6,774,932.16/3,487.60
  6. Step 6: Final answer
    x = 1,942.58

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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.