Home / 3,521.70-5,278.74-2,289.99

Finding the Fourth Proportional to 3,521.70, 5,278.74 and 2,289.99

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Solution

The fourth proportional to 3,521.70, 5,278.74 and 2,289.99 is: 3,432.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.70 : 5,278.74 = 2,289.99 : x
  2. Step 2: Convert to fraction form
    3,521.70/5,278.74 = 2,289.99/x
  3. Step 3: Cross multiply
    3,521.70x = 5,278.74 × 2,289.99
  4. Step 4: Simplify right side
    3,521.70x = 12,088,261.81
  5. Step 5: Solve for x
    x = 12,088,261.81/3,521.70
  6. Step 6: Final answer
    x = 3,432.51

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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.