Home / 1,391.31-2,086.25-466.53

Finding the Fourth Proportional to 1,391.31, 2,086.25 and 466.53

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Solution

The fourth proportional to 1,391.31, 2,086.25 and 466.53 is: 699.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391.31 : 2,086.25 = 466.53 : x
  2. Step 2: Convert to fraction form
    1,391.31/2,086.25 = 466.53/x
  3. Step 3: Cross multiply
    1,391.31x = 2,086.25 × 466.53
  4. Step 4: Simplify right side
    1,391.31x = 973,298.21
  5. Step 5: Solve for x
    x = 973,298.21/1,391.31
  6. Step 6: Final answer
    x = 699.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.