Home / 2,371.23-3,268.20-1,780.74

Finding the Fourth Proportional to 2,371.23, 3,268.20 and 1,780.74

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Solution

The fourth proportional to 2,371.23, 3,268.20 and 1,780.74 is: 2,454.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.23 : 3,268.20 = 1,780.74 : x
  2. Step 2: Convert to fraction form
    2,371.23/3,268.20 = 1,780.74/x
  3. Step 3: Cross multiply
    2,371.23x = 3,268.20 × 1,780.74
  4. Step 4: Simplify right side
    2,371.23x = 5,819,814.47
  5. Step 5: Solve for x
    x = 5,819,814.47/2,371.23
  6. Step 6: Final answer
    x = 2,454.34

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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.