Home / 1,409.13-2,112.24-587.88

Finding the Fourth Proportional to 1,409.13, 2,112.24 and 587.88

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Solution

The fourth proportional to 1,409.13, 2,112.24 and 587.88 is: 881.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409.13 : 2,112.24 = 587.88 : x
  2. Step 2: Convert to fraction form
    1,409.13/2,112.24 = 587.88/x
  3. Step 3: Cross multiply
    1,409.13x = 2,112.24 × 587.88
  4. Step 4: Simplify right side
    1,409.13x = 1,241,743.65
  5. Step 5: Solve for x
    x = 1,241,743.65/1,409.13
  6. Step 6: Final answer
    x = 881.21

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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.