Home / 2,325.88-3,209.78-1,278.01

Finding the Fourth Proportional to 2,325.88, 3,209.78 and 1,278.01

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Solution

The fourth proportional to 2,325.88, 3,209.78 and 1,278.01 is: 1,763.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.88 : 3,209.78 = 1,278.01 : x
  2. Step 2: Convert to fraction form
    2,325.88/3,209.78 = 1,278.01/x
  3. Step 3: Cross multiply
    2,325.88x = 3,209.78 × 1,278.01
  4. Step 4: Simplify right side
    2,325.88x = 4,102,108.50
  5. Step 5: Solve for x
    x = 4,102,108.50/2,325.88
  6. Step 6: Final answer
    x = 1,763.68

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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.