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Finding the Fourth Proportional to 2,752.26, 4,129.33 and 903.70

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Solution

The fourth proportional to 2,752.26, 4,129.33 and 903.70 is: 1,355.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.26 : 4,129.33 = 903.70 : x
  2. Step 2: Convert to fraction form
    2,752.26/4,129.33 = 903.70/x
  3. Step 3: Cross multiply
    2,752.26x = 4,129.33 × 903.70
  4. Step 4: Simplify right side
    2,752.26x = 3,731,675.52
  5. Step 5: Solve for x
    x = 3,731,675.52/2,752.26
  6. Step 6: Final answer
    x = 1,355.86

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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.