Home / 1,456.90-2,186.25-579.26

Finding the Fourth Proportional to 1,456.90, 2,186.25 and 579.26

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Solution

The fourth proportional to 1,456.90, 2,186.25 and 579.26 is: 869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.90 : 2,186.25 = 579.26 : x
  2. Step 2: Convert to fraction form
    1,456.90/2,186.25 = 579.26/x
  3. Step 3: Cross multiply
    1,456.90x = 2,186.25 × 579.26
  4. Step 4: Simplify right side
    1,456.90x = 1,266,407.18
  5. Step 5: Solve for x
    x = 1,266,407.18/1,456.90
  6. Step 6: Final answer
    x = 869.25

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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.