Home / 6,340.38-9,510.54-1,956.78

Finding the Fourth Proportional to 6,340.38, 9,510.54 and 1,956.78

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Solution

The fourth proportional to 6,340.38, 9,510.54 and 1,956.78 is: 2,935.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,340.38 : 9,510.54 = 1,956.78 : x
  2. Step 2: Convert to fraction form
    6,340.38/9,510.54 = 1,956.78/x
  3. Step 3: Cross multiply
    6,340.38x = 9,510.54 × 1,956.78
  4. Step 4: Simplify right side
    6,340.38x = 18,610,034.46
  5. Step 5: Solve for x
    x = 18,610,034.46/6,340.38
  6. Step 6: Final answer
    x = 2,935.16

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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.