Home / 2,695.12-3,719.46-1,948.84

Finding the Fourth Proportional to 2,695.12, 3,719.46 and 1,948.84

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Solution

The fourth proportional to 2,695.12, 3,719.46 and 1,948.84 is: 2,689.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.12 : 3,719.46 = 1,948.84 : x
  2. Step 2: Convert to fraction form
    2,695.12/3,719.46 = 1,948.84/x
  3. Step 3: Cross multiply
    2,695.12x = 3,719.46 × 1,948.84
  4. Step 4: Simplify right side
    2,695.12x = 7,248,632.43
  5. Step 5: Solve for x
    x = 7,248,632.43/2,695.12
  6. Step 6: Final answer
    x = 2,689.54

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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.