Home / 1,877.85-2,589.48-1,131.66

Finding the Fourth Proportional to 1,877.85, 2,589.48 and 1,131.66

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Solution

The fourth proportional to 1,877.85, 2,589.48 and 1,131.66 is: 1,560.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.85 : 2,589.48 = 1,131.66 : x
  2. Step 2: Convert to fraction form
    1,877.85/2,589.48 = 1,131.66/x
  3. Step 3: Cross multiply
    1,877.85x = 2,589.48 × 1,131.66
  4. Step 4: Simplify right side
    1,877.85x = 2,930,410.94
  5. Step 5: Solve for x
    x = 2,930,410.94/1,877.85
  6. Step 6: Final answer
    x = 1,560.51

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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.