Home / 1,541.97-2,123.42-1,148.31

Finding the Fourth Proportional to 1,541.97, 2,123.42 and 1,148.31

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Solution

The fourth proportional to 1,541.97, 2,123.42 and 1,148.31 is: 1,581.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.97 : 2,123.42 = 1,148.31 : x
  2. Step 2: Convert to fraction form
    1,541.97/2,123.42 = 1,148.31/x
  3. Step 3: Cross multiply
    1,541.97x = 2,123.42 × 1,148.31
  4. Step 4: Simplify right side
    1,541.97x = 2,438,338.68
  5. Step 5: Solve for x
    x = 2,438,338.68/1,541.97
  6. Step 6: Final answer
    x = 1,581.31

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1.5x scale

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.