Home / 1,571.73-2,170.56-1,294.71

Finding the Fourth Proportional to 1,571.73, 2,170.56 and 1,294.71

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Solution

The fourth proportional to 1,571.73, 2,170.56 and 1,294.71 is: 1,788.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.73 : 2,170.56 = 1,294.71 : x
  2. Step 2: Convert to fraction form
    1,571.73/2,170.56 = 1,294.71/x
  3. Step 3: Cross multiply
    1,571.73x = 2,170.56 × 1,294.71
  4. Step 4: Simplify right side
    1,571.73x = 2,810,245.74
  5. Step 5: Solve for x
    x = 2,810,245.74/1,571.73
  6. Step 6: Final answer
    x = 1,788.00

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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.