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Finding the Fourth Proportional to 1,757.68, 2,425.59 and 1,011.79

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Solution

The fourth proportional to 1,757.68, 2,425.59 and 1,011.79 is: 1,396.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.68 : 2,425.59 = 1,011.79 : x
  2. Step 2: Convert to fraction form
    1,757.68/2,425.59 = 1,011.79/x
  3. Step 3: Cross multiply
    1,757.68x = 2,425.59 × 1,011.79
  4. Step 4: Simplify right side
    1,757.68x = 2,454,170.52
  5. Step 5: Solve for x
    x = 2,454,170.52/1,757.68
  6. Step 6: Final answer
    x = 1,396.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.