Home / 4,851.92-6,690.48-3,174.78

Finding the Fourth Proportional to 4,851.92, 6,690.48 and 3,174.78

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Solution

The fourth proportional to 4,851.92, 6,690.48 and 3,174.78 is: 4,377.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,851.92 : 6,690.48 = 3,174.78 : x
  2. Step 2: Convert to fraction form
    4,851.92/6,690.48 = 3,174.78/x
  3. Step 3: Cross multiply
    4,851.92x = 6,690.48 × 3,174.78
  4. Step 4: Simplify right side
    4,851.92x = 21,240,802.09
  5. Step 5: Solve for x
    x = 21,240,802.09/4,851.92
  6. Step 6: Final answer
    x = 4,377.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.