Home / 1,727.60-2,587.20-1,641.47

Finding the Fourth Proportional to 1,727.60, 2,587.20 and 1,641.47

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Solution

The fourth proportional to 1,727.60, 2,587.20 and 1,641.47 is: 2,458.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.60 : 2,587.20 = 1,641.47 : x
  2. Step 2: Convert to fraction form
    1,727.60/2,587.20 = 1,641.47/x
  3. Step 3: Cross multiply
    1,727.60x = 2,587.20 × 1,641.47
  4. Step 4: Simplify right side
    1,727.60x = 4,246,811.18
  5. Step 5: Solve for x
    x = 4,246,811.18/1,727.60
  6. Step 6: Final answer
    x = 2,458.21

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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.