Home / 1,641.06-2,462.40-1,587.60

Finding the Fourth Proportional to 1,641.06, 2,462.40 and 1,587.60

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Solution

The fourth proportional to 1,641.06, 2,462.40 and 1,587.60 is: 2,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641.06 : 2,462.40 = 1,587.60 : x
  2. Step 2: Convert to fraction form
    1,641.06/2,462.40 = 1,587.60/x
  3. Step 3: Cross multiply
    1,641.06x = 2,462.40 × 1,587.60
  4. Step 4: Simplify right side
    1,641.06x = 3,909,306.24
  5. Step 5: Solve for x
    x = 3,909,306.24/1,641.06
  6. Step 6: Final answer
    x = 2,382.18

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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.