Home / 2,191.23-3,022.65-1,351.71

Finding the Fourth Proportional to 2,191.23, 3,022.65 and 1,351.71

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Solution

The fourth proportional to 2,191.23, 3,022.65 and 1,351.71 is: 1,864.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.23 : 3,022.65 = 1,351.71 : x
  2. Step 2: Convert to fraction form
    2,191.23/3,022.65 = 1,351.71/x
  3. Step 3: Cross multiply
    2,191.23x = 3,022.65 × 1,351.71
  4. Step 4: Simplify right side
    2,191.23x = 4,085,746.23
  5. Step 5: Solve for x
    x = 4,085,746.23/2,191.23
  6. Step 6: Final answer
    x = 1,864.59

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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.