Home / 1,629.12-2,246.85-965.46

Finding the Fourth Proportional to 1,629.12, 2,246.85 and 965.46

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Solution

The fourth proportional to 1,629.12, 2,246.85 and 965.46 is: 1,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.12 : 2,246.85 = 965.46 : x
  2. Step 2: Convert to fraction form
    1,629.12/2,246.85 = 965.46/x
  3. Step 3: Cross multiply
    1,629.12x = 2,246.85 × 965.46
  4. Step 4: Simplify right side
    1,629.12x = 2,169,243.80
  5. Step 5: Solve for x
    x = 2,169,243.80/1,629.12
  6. Step 6: Final answer
    x = 1,331.54

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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.