Home / 3,454.24-5,180.76-1,698.78

Finding the Fourth Proportional to 3,454.24, 5,180.76 and 1,698.78

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Solution

The fourth proportional to 3,454.24, 5,180.76 and 1,698.78 is: 2,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.24 : 5,180.76 = 1,698.78 : x
  2. Step 2: Convert to fraction form
    3,454.24/5,180.76 = 1,698.78/x
  3. Step 3: Cross multiply
    3,454.24x = 5,180.76 × 1,698.78
  4. Step 4: Simplify right side
    3,454.24x = 8,800,971.47
  5. Step 5: Solve for x
    x = 8,800,971.47/3,454.24
  6. Step 6: Final answer
    x = 2,547.87

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1.5x scale

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.