Home / 1,531.25-2,297.90-750.60

Finding the Fourth Proportional to 1,531.25, 2,297.90 and 750.60

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Solution

The fourth proportional to 1,531.25, 2,297.90 and 750.60 is: 1,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.25 : 2,297.90 = 750.60 : x
  2. Step 2: Convert to fraction form
    1,531.25/2,297.90 = 750.60/x
  3. Step 3: Cross multiply
    1,531.25x = 2,297.90 × 750.60
  4. Step 4: Simplify right side
    1,531.25x = 1,724,799.99
  5. Step 5: Solve for x
    x = 1,724,799.99/1,531.25
  6. Step 6: Final answer
    x = 1,126.40

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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.