Home / 1,647.41-2,271.02-1,253.75

Finding the Fourth Proportional to 1,647.41, 2,271.02 and 1,253.75

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Solution

The fourth proportional to 1,647.41, 2,271.02 and 1,253.75 is: 1,728.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.41 : 2,271.02 = 1,253.75 : x
  2. Step 2: Convert to fraction form
    1,647.41/2,271.02 = 1,253.75/x
  3. Step 3: Cross multiply
    1,647.41x = 2,271.02 × 1,253.75
  4. Step 4: Simplify right side
    1,647.41x = 2,847,273.70
  5. Step 5: Solve for x
    x = 2,847,273.70/1,647.41
  6. Step 6: Final answer
    x = 1,728.34

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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.