Home / 1,281.26-1,921.22-587.33

Finding the Fourth Proportional to 1,281.26, 1,921.22 and 587.33

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Solution

The fourth proportional to 1,281.26, 1,921.22 and 587.33 is: 880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281.26 : 1,921.22 = 587.33 : x
  2. Step 2: Convert to fraction form
    1,281.26/1,921.22 = 587.33/x
  3. Step 3: Cross multiply
    1,281.26x = 1,921.22 × 587.33
  4. Step 4: Simplify right side
    1,281.26x = 1,128,381.60
  5. Step 5: Solve for x
    x = 1,128,381.60/1,281.26
  6. Step 6: Final answer
    x = 880.68

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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.