Home / 2,810.36-4,217.16-1,080.20

Finding the Fourth Proportional to 2,810.36, 4,217.16 and 1,080.20

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Solution

The fourth proportional to 2,810.36, 4,217.16 and 1,080.20 is: 1,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.36 : 4,217.16 = 1,080.20 : x
  2. Step 2: Convert to fraction form
    2,810.36/4,217.16 = 1,080.20/x
  3. Step 3: Cross multiply
    2,810.36x = 4,217.16 × 1,080.20
  4. Step 4: Simplify right side
    2,810.36x = 4,555,376.23
  5. Step 5: Solve for x
    x = 4,555,376.23/2,810.36
  6. Step 6: Final answer
    x = 1,620.92

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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.