Home / 1,332.24-1,994.77-868.87

Finding the Fourth Proportional to 1,332.24, 1,994.77 and 868.87

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Solution

The fourth proportional to 1,332.24, 1,994.77 and 868.87 is: 1,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.24 : 1,994.77 = 868.87 : x
  2. Step 2: Convert to fraction form
    1,332.24/1,994.77 = 868.87/x
  3. Step 3: Cross multiply
    1,332.24x = 1,994.77 × 868.87
  4. Step 4: Simplify right side
    1,332.24x = 1,733,181.49
  5. Step 5: Solve for x
    x = 1,733,181.49/1,332.24
  6. Step 6: Final answer
    x = 1,300.96

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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.