Home / 3,177.44-4,386.24-2,116.80

Finding the Fourth Proportional to 3,177.44, 4,386.24 and 2,116.80

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Solution

The fourth proportional to 3,177.44, 4,386.24 and 2,116.80 is: 2,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.44 : 4,386.24 = 2,116.80 : x
  2. Step 2: Convert to fraction form
    3,177.44/4,386.24 = 2,116.80/x
  3. Step 3: Cross multiply
    3,177.44x = 4,386.24 × 2,116.80
  4. Step 4: Simplify right side
    3,177.44x = 9,284,792.83
  5. Step 5: Solve for x
    x = 9,284,792.83/3,177.44
  6. Step 6: Final answer
    x = 2,922.10

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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.