Home / 3,119.71-4,680.30-1,658.54

Finding the Fourth Proportional to 3,119.71, 4,680.30 and 1,658.54

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Solution

The fourth proportional to 3,119.71, 4,680.30 and 1,658.54 is: 2,488.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.71 : 4,680.30 = 1,658.54 : x
  2. Step 2: Convert to fraction form
    3,119.71/4,680.30 = 1,658.54/x
  3. Step 3: Cross multiply
    3,119.71x = 4,680.30 × 1,658.54
  4. Step 4: Simplify right side
    3,119.71x = 7,762,464.76
  5. Step 5: Solve for x
    x = 7,762,464.76/3,119.71
  6. Step 6: Final answer
    x = 2,488.20

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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.