Home / 2,156.16-3,234.25-695.38

Finding the Fourth Proportional to 2,156.16, 3,234.25 and 695.38

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Solution

The fourth proportional to 2,156.16, 3,234.25 and 695.38 is: 1,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.16 : 3,234.25 = 695.38 : x
  2. Step 2: Convert to fraction form
    2,156.16/3,234.25 = 695.38/x
  3. Step 3: Cross multiply
    2,156.16x = 3,234.25 × 695.38
  4. Step 4: Simplify right side
    2,156.16x = 2,249,032.77
  5. Step 5: Solve for x
    x = 2,249,032.77/2,156.16
  6. Step 6: Final answer
    x = 1,043.07

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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.