Home / 3,521.63-5,278.64-2,289.92

Finding the Fourth Proportional to 3,521.63, 5,278.64 and 2,289.92

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Solution

The fourth proportional to 3,521.63, 5,278.64 and 2,289.92 is: 3,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.63 : 5,278.64 = 2,289.92 : x
  2. Step 2: Convert to fraction form
    3,521.63/5,278.64 = 2,289.92/x
  3. Step 3: Cross multiply
    3,521.63x = 5,278.64 × 2,289.92
  4. Step 4: Simplify right side
    3,521.63x = 12,087,663.31
  5. Step 5: Solve for x
    x = 12,087,663.31/3,521.63
  6. Step 6: Final answer
    x = 3,432.41

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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.