Home / 1,841.60-2,542.20-1,316.72

Finding the Fourth Proportional to 1,841.60, 2,542.20 and 1,316.72

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Solution

The fourth proportional to 1,841.60, 2,542.20 and 1,316.72 is: 1,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.60 : 2,542.20 = 1,316.72 : x
  2. Step 2: Convert to fraction form
    1,841.60/2,542.20 = 1,316.72/x
  3. Step 3: Cross multiply
    1,841.60x = 2,542.20 × 1,316.72
  4. Step 4: Simplify right side
    1,841.60x = 3,347,365.58
  5. Step 5: Solve for x
    x = 3,347,365.58/1,841.60
  6. Step 6: Final answer
    x = 1,817.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.