Home / 2,678.28-4,017.80-1,013.03

Finding the Fourth Proportional to 2,678.28, 4,017.80 and 1,013.03

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Solution

The fourth proportional to 2,678.28, 4,017.80 and 1,013.03 is: 1,519.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.28 : 4,017.80 = 1,013.03 : x
  2. Step 2: Convert to fraction form
    2,678.28/4,017.80 = 1,013.03/x
  3. Step 3: Cross multiply
    2,678.28x = 4,017.80 × 1,013.03
  4. Step 4: Simplify right side
    2,678.28x = 4,070,160.74
  5. Step 5: Solve for x
    x = 4,070,160.74/2,678.28
  6. Step 6: Final answer
    x = 1,519.69

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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.