Home / 1,409.80-2,115.30-588.26

Finding the Fourth Proportional to 1,409.80, 2,115.30 and 588.26

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Solution

The fourth proportional to 1,409.80, 2,115.30 and 588.26 is: 882.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409.80 : 2,115.30 = 588.26 : x
  2. Step 2: Convert to fraction form
    1,409.80/2,115.30 = 588.26/x
  3. Step 3: Cross multiply
    1,409.80x = 2,115.30 × 588.26
  4. Step 4: Simplify right side
    1,409.80x = 1,244,346.38
  5. Step 5: Solve for x
    x = 1,244,346.38/1,409.80
  6. Step 6: Final answer
    x = 882.64

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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.