Home / 2,154.91-3,217.76-1,711.18

Finding the Fourth Proportional to 2,154.91, 3,217.76 and 1,711.18

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Solution

The fourth proportional to 2,154.91, 3,217.76 and 1,711.18 is: 2,555.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.91 : 3,217.76 = 1,711.18 : x
  2. Step 2: Convert to fraction form
    2,154.91/3,217.76 = 1,711.18/x
  3. Step 3: Cross multiply
    2,154.91x = 3,217.76 × 1,711.18
  4. Step 4: Simplify right side
    2,154.91x = 5,506,166.56
  5. Step 5: Solve for x
    x = 5,506,166.56/2,154.91
  6. Step 6: Final answer
    x = 2,555.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.