Home / 1,872.06-2,581.78-1,125.74

Finding the Fourth Proportional to 1,872.06, 2,581.78 and 1,125.74

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Solution

The fourth proportional to 1,872.06, 2,581.78 and 1,125.74 is: 1,552.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.06 : 2,581.78 = 1,125.74 : x
  2. Step 2: Convert to fraction form
    1,872.06/2,581.78 = 1,125.74/x
  3. Step 3: Cross multiply
    1,872.06x = 2,581.78 × 1,125.74
  4. Step 4: Simplify right side
    1,872.06x = 2,906,413.02
  5. Step 5: Solve for x
    x = 2,906,413.02/1,872.06
  6. Step 6: Final answer
    x = 1,552.52

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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.