Home / 2,721.12-3,755.18-1,479.12

Finding the Fourth Proportional to 2,721.12, 3,755.18 and 1,479.12

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Solution

The fourth proportional to 2,721.12, 3,755.18 and 1,479.12 is: 2,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.12 : 3,755.18 = 1,479.12 : x
  2. Step 2: Convert to fraction form
    2,721.12/3,755.18 = 1,479.12/x
  3. Step 3: Cross multiply
    2,721.12x = 3,755.18 × 1,479.12
  4. Step 4: Simplify right side
    2,721.12x = 5,554,361.84
  5. Step 5: Solve for x
    x = 5,554,361.84/2,721.12
  6. Step 6: Final answer
    x = 2,041.20

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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.