Home / 2,661.18-3,672.36-1,541.40

Finding the Fourth Proportional to 2,661.18, 3,672.36 and 1,541.40

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Solution

The fourth proportional to 2,661.18, 3,672.36 and 1,541.40 is: 2,127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.18 : 3,672.36 = 1,541.40 : x
  2. Step 2: Convert to fraction form
    2,661.18/3,672.36 = 1,541.40/x
  3. Step 3: Cross multiply
    2,661.18x = 3,672.36 × 1,541.40
  4. Step 4: Simplify right side
    2,661.18x = 5,660,575.70
  5. Step 5: Solve for x
    x = 5,660,575.70/2,661.18
  6. Step 6: Final answer
    x = 2,127.09

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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.