Home / 2,979.97-4,466.88-2,156.20

Finding the Fourth Proportional to 2,979.97, 4,466.88 and 2,156.20

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Solution

The fourth proportional to 2,979.97, 4,466.88 and 2,156.20 is: 3,232.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.97 : 4,466.88 = 2,156.20 : x
  2. Step 2: Convert to fraction form
    2,979.97/4,466.88 = 2,156.20/x
  3. Step 3: Cross multiply
    2,979.97x = 4,466.88 × 2,156.20
  4. Step 4: Simplify right side
    2,979.97x = 9,631,486.66
  5. Step 5: Solve for x
    x = 9,631,486.66/2,979.97
  6. Step 6: Final answer
    x = 3,232.08

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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.