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Finding the Fourth Proportional to 1,757.78, 2,425.79 and 1,058.75

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Solution

The fourth proportional to 1,757.78, 2,425.79 and 1,058.75 is: 1,461.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.78 : 2,425.79 = 1,058.75 : x
  2. Step 2: Convert to fraction form
    1,757.78/2,425.79 = 1,058.75/x
  3. Step 3: Cross multiply
    1,757.78x = 2,425.79 × 1,058.75
  4. Step 4: Simplify right side
    1,757.78x = 2,568,305.16
  5. Step 5: Solve for x
    x = 2,568,305.16/1,757.78
  6. Step 6: Final answer
    x = 1,461.11

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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.