Home / 3,907.15-5,402.24-3,415.08

Finding the Fourth Proportional to 3,907.15, 5,402.24 and 3,415.08

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Solution

The fourth proportional to 3,907.15, 5,402.24 and 3,415.08 is: 4,721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.15 : 5,402.24 = 3,415.08 : x
  2. Step 2: Convert to fraction form
    3,907.15/5,402.24 = 3,415.08/x
  3. Step 3: Cross multiply
    3,907.15x = 5,402.24 × 3,415.08
  4. Step 4: Simplify right side
    3,907.15x = 18,449,081.78
  5. Step 5: Solve for x
    x = 18,449,081.78/3,907.15
  6. Step 6: Final answer
    x = 4,721.88

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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.