Home / 2,688.16-3,708.66-1,568.68

Finding the Fourth Proportional to 2,688.16, 3,708.66 and 1,568.68

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Solution

The fourth proportional to 2,688.16, 3,708.66 and 1,568.68 is: 2,164.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.16 : 3,708.66 = 1,568.68 : x
  2. Step 2: Convert to fraction form
    2,688.16/3,708.66 = 1,568.68/x
  3. Step 3: Cross multiply
    2,688.16x = 3,708.66 × 1,568.68
  4. Step 4: Simplify right side
    2,688.16x = 5,817,700.77
  5. Step 5: Solve for x
    x = 5,817,700.77/2,688.16
  6. Step 6: Final answer
    x = 2,164.19

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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.