Home / 2,753.38-4,107.47-2,678.08

Finding the Fourth Proportional to 2,753.38, 4,107.47 and 2,678.08

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Solution

The fourth proportional to 2,753.38, 4,107.47 and 2,678.08 is: 3,995.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.38 : 4,107.47 = 2,678.08 : x
  2. Step 2: Convert to fraction form
    2,753.38/4,107.47 = 2,678.08/x
  3. Step 3: Cross multiply
    2,753.38x = 4,107.47 × 2,678.08
  4. Step 4: Simplify right side
    2,753.38x = 11,000,133.26
  5. Step 5: Solve for x
    x = 11,000,133.26/2,753.38
  6. Step 6: Final answer
    x = 3,995.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.