Home / 4,123.66-5,688.67-2,706.78

Finding the Fourth Proportional to 4,123.66, 5,688.67 and 2,706.78

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Solution

The fourth proportional to 4,123.66, 5,688.67 and 2,706.78 is: 3,734.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.66 : 5,688.67 = 2,706.78 : x
  2. Step 2: Convert to fraction form
    4,123.66/5,688.67 = 2,706.78/x
  3. Step 3: Cross multiply
    4,123.66x = 5,688.67 × 2,706.78
  4. Step 4: Simplify right side
    4,123.66x = 15,397,978.18
  5. Step 5: Solve for x
    x = 15,397,978.18/4,123.66
  6. Step 6: Final answer
    x = 3,734.06

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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.