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Finding the Fourth Proportional to 1,349.75, 2,024.75 and 619.22

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Solution

The fourth proportional to 1,349.75, 2,024.75 and 619.22 is: 928.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.75 : 2,024.75 = 619.22 : x
  2. Step 2: Convert to fraction form
    1,349.75/2,024.75 = 619.22/x
  3. Step 3: Cross multiply
    1,349.75x = 2,024.75 × 619.22
  4. Step 4: Simplify right side
    1,349.75x = 1,253,765.70
  5. Step 5: Solve for x
    x = 1,253,765.70/1,349.75
  6. Step 6: Final answer
    x = 928.89

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1.5x scale

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.