Home / 1,942.28-2,680.36-1,058.08

Finding the Fourth Proportional to 1,942.28, 2,680.36 and 1,058.08

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Solution

The fourth proportional to 1,942.28, 2,680.36 and 1,058.08 is: 1,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.28 : 2,680.36 = 1,058.08 : x
  2. Step 2: Convert to fraction form
    1,942.28/2,680.36 = 1,058.08/x
  3. Step 3: Cross multiply
    1,942.28x = 2,680.36 × 1,058.08
  4. Step 4: Simplify right side
    1,942.28x = 2,836,025.96
  5. Step 5: Solve for x
    x = 2,836,025.96/1,942.28
  6. Step 6: Final answer
    x = 1,460.15

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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.