Home / 2,542.40-3,811.80-1,154.60

Finding the Fourth Proportional to 2,542.40, 3,811.80 and 1,154.60

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Solution

The fourth proportional to 2,542.40, 3,811.80 and 1,154.60 is: 1,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.40 : 3,811.80 = 1,154.60 : x
  2. Step 2: Convert to fraction form
    2,542.40/3,811.80 = 1,154.60/x
  3. Step 3: Cross multiply
    2,542.40x = 3,811.80 × 1,154.60
  4. Step 4: Simplify right side
    2,542.40x = 4,401,104.28
  5. Step 5: Solve for x
    x = 4,401,104.28/2,542.40
  6. Step 6: Final answer
    x = 1,731.08

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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.