Home / 2,721.85-3,756.14-1,479.85

Finding the Fourth Proportional to 2,721.85, 3,756.14 and 1,479.85

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Solution

The fourth proportional to 2,721.85, 3,756.14 and 1,479.85 is: 2,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.85 : 3,756.14 = 1,479.85 : x
  2. Step 2: Convert to fraction form
    2,721.85/3,756.14 = 1,479.85/x
  3. Step 3: Cross multiply
    2,721.85x = 3,756.14 × 1,479.85
  4. Step 4: Simplify right side
    2,721.85x = 5,558,518.09
  5. Step 5: Solve for x
    x = 5,558,518.09/2,721.85
  6. Step 6: Final answer
    x = 2,042.19

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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.