Home / 3,660.34-5,051.28-1,981.75

Finding the Fourth Proportional to 3,660.34, 5,051.28 and 1,981.75

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Solution

The fourth proportional to 3,660.34, 5,051.28 and 1,981.75 is: 2,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.34 : 5,051.28 = 1,981.75 : x
  2. Step 2: Convert to fraction form
    3,660.34/5,051.28 = 1,981.75/x
  3. Step 3: Cross multiply
    3,660.34x = 5,051.28 × 1,981.75
  4. Step 4: Simplify right side
    3,660.34x = 10,010,367.84
  5. Step 5: Solve for x
    x = 10,010,367.84/3,660.34
  6. Step 6: Final answer
    x = 2,734.82

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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.