Home / 4,122.08-5,687.12-2,630.48

Finding the Fourth Proportional to 4,122.08, 5,687.12 and 2,630.48

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Solution

The fourth proportional to 4,122.08, 5,687.12 and 2,630.48 is: 3,629.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.08 : 5,687.12 = 2,630.48 : x
  2. Step 2: Convert to fraction form
    4,122.08/5,687.12 = 2,630.48/x
  3. Step 3: Cross multiply
    4,122.08x = 5,687.12 × 2,630.48
  4. Step 4: Simplify right side
    4,122.08x = 14,959,813.83
  5. Step 5: Solve for x
    x = 14,959,813.83/4,122.08
  6. Step 6: Final answer
    x = 3,629.19

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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.