Home / 2,325.91-3,209.64-1,278.01

Finding the Fourth Proportional to 2,325.91, 3,209.64 and 1,278.01

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Solution

The fourth proportional to 2,325.91, 3,209.64 and 1,278.01 is: 1,763.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.91 : 3,209.64 = 1,278.01 : x
  2. Step 2: Convert to fraction form
    2,325.91/3,209.64 = 1,278.01/x
  3. Step 3: Cross multiply
    2,325.91x = 3,209.64 × 1,278.01
  4. Step 4: Simplify right side
    2,325.91x = 4,101,952.02
  5. Step 5: Solve for x
    x = 4,101,952.02/2,325.91
  6. Step 6: Final answer
    x = 1,763.59

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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.