Home / 2,629.72-3,937.56-2,318.32

Finding the Fourth Proportional to 2,629.72, 3,937.56 and 2,318.32

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Solution

The fourth proportional to 2,629.72, 3,937.56 and 2,318.32 is: 3,471.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.72 : 3,937.56 = 2,318.32 : x
  2. Step 2: Convert to fraction form
    2,629.72/3,937.56 = 2,318.32/x
  3. Step 3: Cross multiply
    2,629.72x = 3,937.56 × 2,318.32
  4. Step 4: Simplify right side
    2,629.72x = 9,128,524.10
  5. Step 5: Solve for x
    x = 9,128,524.10/2,629.72
  6. Step 6: Final answer
    x = 3,471.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.