Home / 1,393.23-2,077.56-1,380.74

Finding the Fourth Proportional to 1,393.23, 2,077.56 and 1,380.74

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Solution

The fourth proportional to 1,393.23, 2,077.56 and 1,380.74 is: 2,058.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.23 : 2,077.56 = 1,380.74 : x
  2. Step 2: Convert to fraction form
    1,393.23/2,077.56 = 1,380.74/x
  3. Step 3: Cross multiply
    1,393.23x = 2,077.56 × 1,380.74
  4. Step 4: Simplify right side
    1,393.23x = 2,868,561.53
  5. Step 5: Solve for x
    x = 2,868,561.53/1,393.23
  6. Step 6: Final answer
    x = 2,058.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.