Home / 2,974.45-4,104.86-1,648.12

Finding the Fourth Proportional to 2,974.45, 4,104.86 and 1,648.12

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Solution

The fourth proportional to 2,974.45, 4,104.86 and 1,648.12 is: 2,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.45 : 4,104.86 = 1,648.12 : x
  2. Step 2: Convert to fraction form
    2,974.45/4,104.86 = 1,648.12/x
  3. Step 3: Cross multiply
    2,974.45x = 4,104.86 × 1,648.12
  4. Step 4: Simplify right side
    2,974.45x = 6,765,301.86
  5. Step 5: Solve for x
    x = 6,765,301.86/2,974.45
  6. Step 6: Final answer
    x = 2,274.47

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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.