Home / 1,054.35-1,452.20-913.95

Finding the Fourth Proportional to 1,054.35, 1,452.20 and 913.95

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Solution

The fourth proportional to 1,054.35, 1,452.20 and 913.95 is: 1,258.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.35 : 1,452.20 = 913.95 : x
  2. Step 2: Convert to fraction form
    1,054.35/1,452.20 = 913.95/x
  3. Step 3: Cross multiply
    1,054.35x = 1,452.20 × 913.95
  4. Step 4: Simplify right side
    1,054.35x = 1,327,233.62
  5. Step 5: Solve for x
    x = 1,327,233.62/1,054.35
  6. Step 6: Final answer
    x = 1,258.82

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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.