Home / 2,688.24-4,032.40-956.82

Finding the Fourth Proportional to 2,688.24, 4,032.40 and 956.82

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Solution

The fourth proportional to 2,688.24, 4,032.40 and 956.82 is: 1,435.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.24 : 4,032.40 = 956.82 : x
  2. Step 2: Convert to fraction form
    2,688.24/4,032.40 = 956.82/x
  3. Step 3: Cross multiply
    2,688.24x = 4,032.40 × 956.82
  4. Step 4: Simplify right side
    2,688.24x = 3,858,280.97
  5. Step 5: Solve for x
    x = 3,858,280.97/2,688.24
  6. Step 6: Final answer
    x = 1,435.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.