Home / 1,647.18-2,270.97-1,253.52

Finding the Fourth Proportional to 1,647.18, 2,270.97 and 1,253.52

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Solution

The fourth proportional to 1,647.18, 2,270.97 and 1,253.52 is: 1,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.18 : 2,270.97 = 1,253.52 : x
  2. Step 2: Convert to fraction form
    1,647.18/2,270.97 = 1,253.52/x
  3. Step 3: Cross multiply
    1,647.18x = 2,270.97 × 1,253.52
  4. Step 4: Simplify right side
    1,647.18x = 2,846,706.31
  5. Step 5: Solve for x
    x = 2,846,706.31/1,647.18
  6. Step 6: Final answer
    x = 1,728.23

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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.