Home / 3,507.15-4,839.22-2,015.13

Finding the Fourth Proportional to 3,507.15, 4,839.22 and 2,015.13

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Solution

The fourth proportional to 3,507.15, 4,839.22 and 2,015.13 is: 2,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.15 : 4,839.22 = 2,015.13 : x
  2. Step 2: Convert to fraction form
    3,507.15/4,839.22 = 2,015.13/x
  3. Step 3: Cross multiply
    3,507.15x = 4,839.22 × 2,015.13
  4. Step 4: Simplify right side
    3,507.15x = 9,751,655.38
  5. Step 5: Solve for x
    x = 9,751,655.38/3,507.15
  6. Step 6: Final answer
    x = 2,780.51

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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.