Home / 2,376.20-3,565.11-1,280.67

Finding the Fourth Proportional to 2,376.20, 3,565.11 and 1,280.67

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Solution

The fourth proportional to 2,376.20, 3,565.11 and 1,280.67 is: 1,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.20 : 3,565.11 = 1,280.67 : x
  2. Step 2: Convert to fraction form
    2,376.20/3,565.11 = 1,280.67/x
  3. Step 3: Cross multiply
    2,376.20x = 3,565.11 × 1,280.67
  4. Step 4: Simplify right side
    2,376.20x = 4,565,729.42
  5. Step 5: Solve for x
    x = 4,565,729.42/2,376.20
  6. Step 6: Final answer
    x = 1,921.44

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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.