Home / 2,039.02-2,812.51-1,252.78

Finding the Fourth Proportional to 2,039.02, 2,812.51 and 1,252.78

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Solution

The fourth proportional to 2,039.02, 2,812.51 and 1,252.78 is: 1,728.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.02 : 2,812.51 = 1,252.78 : x
  2. Step 2: Convert to fraction form
    2,039.02/2,812.51 = 1,252.78/x
  3. Step 3: Cross multiply
    2,039.02x = 2,812.51 × 1,252.78
  4. Step 4: Simplify right side
    2,039.02x = 3,523,456.28
  5. Step 5: Solve for x
    x = 3,523,456.28/2,039.02
  6. Step 6: Final answer
    x = 1,728.01

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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.