Home / 2,278.74-3,421.14-1,540.83

Finding the Fourth Proportional to 2,278.74, 3,421.14 and 1,540.83

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Solution

The fourth proportional to 2,278.74, 3,421.14 and 1,540.83 is: 2,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.74 : 3,421.14 = 1,540.83 : x
  2. Step 2: Convert to fraction form
    2,278.74/3,421.14 = 1,540.83/x
  3. Step 3: Cross multiply
    2,278.74x = 3,421.14 × 1,540.83
  4. Step 4: Simplify right side
    2,278.74x = 5,271,395.15
  5. Step 5: Solve for x
    x = 5,271,395.15/2,278.74
  6. Step 6: Final answer
    x = 2,313.29

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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.