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Finding the Fourth Proportional to 1,881.72, 2,597.07 and 1,135.79

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Solution

The fourth proportional to 1,881.72, 2,597.07 and 1,135.79 is: 1,567.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.72 : 2,597.07 = 1,135.79 : x
  2. Step 2: Convert to fraction form
    1,881.72/2,597.07 = 1,135.79/x
  3. Step 3: Cross multiply
    1,881.72x = 2,597.07 × 1,135.79
  4. Step 4: Simplify right side
    1,881.72x = 2,949,726.14
  5. Step 5: Solve for x
    x = 2,949,726.14/1,881.72
  6. Step 6: Final answer
    x = 1,567.57

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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.