Home / 2,660.78-3,670.98-1,541.18

Finding the Fourth Proportional to 2,660.78, 3,670.98 and 1,541.18

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Solution

The fourth proportional to 2,660.78, 3,670.98 and 1,541.18 is: 2,126.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.78 : 3,670.98 = 1,541.18 : x
  2. Step 2: Convert to fraction form
    2,660.78/3,670.98 = 1,541.18/x
  3. Step 3: Cross multiply
    2,660.78x = 3,670.98 × 1,541.18
  4. Step 4: Simplify right side
    2,660.78x = 5,657,640.96
  5. Step 5: Solve for x
    x = 5,657,640.96/2,660.78
  6. Step 6: Final answer
    x = 2,126.31

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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.