Home / 2,191.89-3,025.49-1,528.97

Finding the Fourth Proportional to 2,191.89, 3,025.49 and 1,528.97

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Solution

The fourth proportional to 2,191.89, 3,025.49 and 1,528.97 is: 2,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.89 : 3,025.49 = 1,528.97 : x
  2. Step 2: Convert to fraction form
    2,191.89/3,025.49 = 1,528.97/x
  3. Step 3: Cross multiply
    2,191.89x = 3,025.49 × 1,528.97
  4. Step 4: Simplify right side
    2,191.89x = 4,625,860.67
  5. Step 5: Solve for x
    x = 4,625,860.67/2,191.89
  6. Step 6: Final answer
    x = 2,110.44

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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.