Home / 2,688.05-3,708.85-1,568.34

Finding the Fourth Proportional to 2,688.05, 3,708.85 and 1,568.34

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Solution

The fourth proportional to 2,688.05, 3,708.85 and 1,568.34 is: 2,163.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.05 : 3,708.85 = 1,568.34 : x
  2. Step 2: Convert to fraction form
    2,688.05/3,708.85 = 1,568.34/x
  3. Step 3: Cross multiply
    2,688.05x = 3,708.85 × 1,568.34
  4. Step 4: Simplify right side
    2,688.05x = 5,816,747.08
  5. Step 5: Solve for x
    x = 5,816,747.08/2,688.05
  6. Step 6: Final answer
    x = 2,163.93

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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.