Home / 1,877.20-2,591.27-1,680.37

Finding the Fourth Proportional to 1,877.20, 2,591.27 and 1,680.37

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Solution

The fourth proportional to 1,877.20, 2,591.27 and 1,680.37 is: 2,319.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.20 : 2,591.27 = 1,680.37 : x
  2. Step 2: Convert to fraction form
    1,877.20/2,591.27 = 1,680.37/x
  3. Step 3: Cross multiply
    1,877.20x = 2,591.27 × 1,680.37
  4. Step 4: Simplify right side
    1,877.20x = 4,354,292.37
  5. Step 5: Solve for x
    x = 4,354,292.37/1,877.20
  6. Step 6: Final answer
    x = 2,319.57

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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.