Home / 2,380.50-3,281.58-1,959.84

Finding the Fourth Proportional to 2,380.50, 3,281.58 and 1,959.84

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Solution

The fourth proportional to 2,380.50, 3,281.58 and 1,959.84 is: 2,701.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.50 : 3,281.58 = 1,959.84 : x
  2. Step 2: Convert to fraction form
    2,380.50/3,281.58 = 1,959.84/x
  3. Step 3: Cross multiply
    2,380.50x = 3,281.58 × 1,959.84
  4. Step 4: Simplify right side
    2,380.50x = 6,431,371.75
  5. Step 5: Solve for x
    x = 6,431,371.75/2,380.50
  6. Step 6: Final answer
    x = 2,701.69

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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.