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Finding the Fourth Proportional to 1,717.80, 2,575.10 and 1,197.80

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Solution

The fourth proportional to 1,717.80, 2,575.10 and 1,197.80 is: 1,795.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.80 : 2,575.10 = 1,197.80 : x
  2. Step 2: Convert to fraction form
    1,717.80/2,575.10 = 1,197.80/x
  3. Step 3: Cross multiply
    1,717.80x = 2,575.10 × 1,197.80
  4. Step 4: Simplify right side
    1,717.80x = 3,084,454.78
  5. Step 5: Solve for x
    x = 3,084,454.78/1,717.80
  6. Step 6: Final answer
    x = 1,795.58

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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.