Home / 1,541.56-2,127.36-943.88

Finding the Fourth Proportional to 1,541.56, 2,127.36 and 943.88

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Solution

The fourth proportional to 1,541.56, 2,127.36 and 943.88 is: 1,302.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.56 : 2,127.36 = 943.88 : x
  2. Step 2: Convert to fraction form
    1,541.56/2,127.36 = 943.88/x
  3. Step 3: Cross multiply
    1,541.56x = 2,127.36 × 943.88
  4. Step 4: Simplify right side
    1,541.56x = 2,007,972.56
  5. Step 5: Solve for x
    x = 2,007,972.56/1,541.56
  6. Step 6: Final answer
    x = 1,302.56

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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.