Home / 1,942.68-2,680.90-1,058.48

Finding the Fourth Proportional to 1,942.68, 2,680.90 and 1,058.48

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Solution

The fourth proportional to 1,942.68, 2,680.90 and 1,058.48 is: 1,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.68 : 2,680.90 = 1,058.48 : x
  2. Step 2: Convert to fraction form
    1,942.68/2,680.90 = 1,058.48/x
  3. Step 3: Cross multiply
    1,942.68x = 2,680.90 × 1,058.48
  4. Step 4: Simplify right side
    1,942.68x = 2,837,679.03
  5. Step 5: Solve for x
    x = 2,837,679.03/1,942.68
  6. Step 6: Final answer
    x = 1,460.70

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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.