Home / 2,816.12-4,224.66-1,256.70

Finding the Fourth Proportional to 2,816.12, 4,224.66 and 1,256.70

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Solution

The fourth proportional to 2,816.12, 4,224.66 and 1,256.70 is: 1,885.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.12 : 4,224.66 = 1,256.70 : x
  2. Step 2: Convert to fraction form
    2,816.12/4,224.66 = 1,256.70/x
  3. Step 3: Cross multiply
    2,816.12x = 4,224.66 × 1,256.70
  4. Step 4: Simplify right side
    2,816.12x = 5,309,130.22
  5. Step 5: Solve for x
    x = 5,309,130.22/2,816.12
  6. Step 6: Final answer
    x = 1,885.26

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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.