Home / 3,012.57-4,518.84-1,979.10

Finding the Fourth Proportional to 3,012.57, 4,518.84 and 1,979.10

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Solution

The fourth proportional to 3,012.57, 4,518.84 and 1,979.10 is: 2,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.57 : 4,518.84 = 1,979.10 : x
  2. Step 2: Convert to fraction form
    3,012.57/4,518.84 = 1,979.10/x
  3. Step 3: Cross multiply
    3,012.57x = 4,518.84 × 1,979.10
  4. Step 4: Simplify right side
    3,012.57x = 8,943,236.24
  5. Step 5: Solve for x
    x = 8,943,236.24/3,012.57
  6. Step 6: Final answer
    x = 2,968.64

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Similar ratio
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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.