Home / 1,391.13-2,086.81-466.70

Finding the Fourth Proportional to 1,391.13, 2,086.81 and 466.70

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Solution

The fourth proportional to 1,391.13, 2,086.81 and 466.70 is: 700.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391.13 : 2,086.81 = 466.70 : x
  2. Step 2: Convert to fraction form
    1,391.13/2,086.81 = 466.70/x
  3. Step 3: Cross multiply
    1,391.13x = 2,086.81 × 466.70
  4. Step 4: Simplify right side
    1,391.13x = 973,902.63
  5. Step 5: Solve for x
    x = 973,902.63/1,391.13
  6. Step 6: Final answer
    x = 700.08

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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.