Home / 1,391.50-2,086.44-466.55

Finding the Fourth Proportional to 1,391.50, 2,086.44 and 466.55

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Solution

The fourth proportional to 1,391.50, 2,086.44 and 466.55 is: 699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391.50 : 2,086.44 = 466.55 : x
  2. Step 2: Convert to fraction form
    1,391.50/2,086.44 = 466.55/x
  3. Step 3: Cross multiply
    1,391.50x = 2,086.44 × 466.55
  4. Step 4: Simplify right side
    1,391.50x = 973,428.58
  5. Step 5: Solve for x
    x = 973,428.58/1,391.50
  6. Step 6: Final answer
    x = 699.55

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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.