Home / 2,812.54-4,219.01-1,081.16

Finding the Fourth Proportional to 2,812.54, 4,219.01 and 1,081.16

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Solution

The fourth proportional to 2,812.54, 4,219.01 and 1,081.16 is: 1,621.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.54 : 4,219.01 = 1,081.16 : x
  2. Step 2: Convert to fraction form
    2,812.54/4,219.01 = 1,081.16/x
  3. Step 3: Cross multiply
    2,812.54x = 4,219.01 × 1,081.16
  4. Step 4: Simplify right side
    2,812.54x = 4,561,424.85
  5. Step 5: Solve for x
    x = 4,561,424.85/2,812.54
  6. Step 6: Final answer
    x = 1,621.82

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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.