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Finding the Fourth Proportional to 2,691.60, 4,037.22 and 717.08

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Solution

The fourth proportional to 2,691.60, 4,037.22 and 717.08 is: 1,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.60 : 4,037.22 = 717.08 : x
  2. Step 2: Convert to fraction form
    2,691.60/4,037.22 = 717.08/x
  3. Step 3: Cross multiply
    2,691.60x = 4,037.22 × 717.08
  4. Step 4: Simplify right side
    2,691.60x = 2,895,009.72
  5. Step 5: Solve for x
    x = 2,895,009.72/2,691.60
  6. Step 6: Final answer
    x = 1,075.57

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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.