Home / 2,478.42-3,717.99-1,017.72

Finding the Fourth Proportional to 2,478.42, 3,717.99 and 1,017.72

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Solution

The fourth proportional to 2,478.42, 3,717.99 and 1,017.72 is: 1,526.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.42 : 3,717.99 = 1,017.72 : x
  2. Step 2: Convert to fraction form
    2,478.42/3,717.99 = 1,017.72/x
  3. Step 3: Cross multiply
    2,478.42x = 3,717.99 × 1,017.72
  4. Step 4: Simplify right side
    2,478.42x = 3,783,872.78
  5. Step 5: Solve for x
    x = 3,783,872.78/2,478.42
  6. Step 6: Final answer
    x = 1,526.73

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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.