Home / 3,923.63-5,418.12-2,927.18

Finding the Fourth Proportional to 3,923.63, 5,418.12 and 2,927.18

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Solution

The fourth proportional to 3,923.63, 5,418.12 and 2,927.18 is: 4,042.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.63 : 5,418.12 = 2,927.18 : x
  2. Step 2: Convert to fraction form
    3,923.63/5,418.12 = 2,927.18/x
  3. Step 3: Cross multiply
    3,923.63x = 5,418.12 × 2,927.18
  4. Step 4: Simplify right side
    3,923.63x = 15,859,837.02
  5. Step 5: Solve for x
    x = 15,859,837.02/3,923.63
  6. Step 6: Final answer
    x = 4,042.13

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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.