Home / 1,627.92-2,437.20-1,239.48

Finding the Fourth Proportional to 1,627.92, 2,437.20 and 1,239.48

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Solution

The fourth proportional to 1,627.92, 2,437.20 and 1,239.48 is: 1,855.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.92 : 2,437.20 = 1,239.48 : x
  2. Step 2: Convert to fraction form
    1,627.92/2,437.20 = 1,239.48/x
  3. Step 3: Cross multiply
    1,627.92x = 2,437.20 × 1,239.48
  4. Step 4: Simplify right side
    1,627.92x = 3,020,860.66
  5. Step 5: Solve for x
    x = 3,020,860.66/1,627.92
  6. Step 6: Final answer
    x = 1,855.66

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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.