Home / 1,529.20-2,110.31-866.18

Finding the Fourth Proportional to 1,529.20, 2,110.31 and 866.18

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Solution

The fourth proportional to 1,529.20, 2,110.31 and 866.18 is: 1,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.20 : 2,110.31 = 866.18 : x
  2. Step 2: Convert to fraction form
    1,529.20/2,110.31 = 866.18/x
  3. Step 3: Cross multiply
    1,529.20x = 2,110.31 × 866.18
  4. Step 4: Simplify right side
    1,529.20x = 1,827,909.26
  5. Step 5: Solve for x
    x = 1,827,909.26/1,529.20
  6. Step 6: Final answer
    x = 1,195.34

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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.