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Finding the Fourth Proportional to 2,721.08, 3,755.10 and 1,479.08

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Solution

The fourth proportional to 2,721.08, 3,755.10 and 1,479.08 is: 2,041.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.08 : 3,755.10 = 1,479.08 : x
  2. Step 2: Convert to fraction form
    2,721.08/3,755.10 = 1,479.08/x
  3. Step 3: Cross multiply
    2,721.08x = 3,755.10 × 1,479.08
  4. Step 4: Simplify right side
    2,721.08x = 5,554,093.31
  5. Step 5: Solve for x
    x = 5,554,093.31/2,721.08
  6. Step 6: Final answer
    x = 2,041.14

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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.