Home / 2,224.74-3,070.61-1,280.66

Finding the Fourth Proportional to 2,224.74, 3,070.61 and 1,280.66

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Solution

The fourth proportional to 2,224.74, 3,070.61 and 1,280.66 is: 1,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.74 : 3,070.61 = 1,280.66 : x
  2. Step 2: Convert to fraction form
    2,224.74/3,070.61 = 1,280.66/x
  3. Step 3: Cross multiply
    2,224.74x = 3,070.61 × 1,280.66
  4. Step 4: Simplify right side
    2,224.74x = 3,932,407.40
  5. Step 5: Solve for x
    x = 3,932,407.40/2,224.74
  6. Step 6: Final answer
    x = 1,767.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.