Home / 2,721.63-3,755.85-1,479.63

Finding the Fourth Proportional to 2,721.63, 3,755.85 and 1,479.63

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Solution

The fourth proportional to 2,721.63, 3,755.85 and 1,479.63 is: 2,041.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.63 : 3,755.85 = 1,479.63 : x
  2. Step 2: Convert to fraction form
    2,721.63/3,755.85 = 1,479.63/x
  3. Step 3: Cross multiply
    2,721.63x = 3,755.85 × 1,479.63
  4. Step 4: Simplify right side
    2,721.63x = 5,557,268.34
  5. Step 5: Solve for x
    x = 5,557,268.34/2,721.63
  6. Step 6: Final answer
    x = 2,041.89

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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.