Home / 2,688.27-3,711.09-1,793.49

Finding the Fourth Proportional to 2,688.27, 3,711.09 and 1,793.49

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Solution

The fourth proportional to 2,688.27, 3,711.09 and 1,793.49 is: 2,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.27 : 3,711.09 = 1,793.49 : x
  2. Step 2: Convert to fraction form
    2,688.27/3,711.09 = 1,793.49/x
  3. Step 3: Cross multiply
    2,688.27x = 3,711.09 × 1,793.49
  4. Step 4: Simplify right side
    2,688.27x = 6,655,802.80
  5. Step 5: Solve for x
    x = 6,655,802.80/2,688.27
  6. Step 6: Final answer
    x = 2,475.87

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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.