Home / 3,681.87-5,079.33-2,486.48

Finding the Fourth Proportional to 3,681.87, 5,079.33 and 2,486.48

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Solution

The fourth proportional to 3,681.87, 5,079.33 and 2,486.48 is: 3,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.87 : 5,079.33 = 2,486.48 : x
  2. Step 2: Convert to fraction form
    3,681.87/5,079.33 = 2,486.48/x
  3. Step 3: Cross multiply
    3,681.87x = 5,079.33 × 2,486.48
  4. Step 4: Simplify right side
    3,681.87x = 12,629,627.06
  5. Step 5: Solve for x
    x = 12,629,627.06/3,681.87
  6. Step 6: Final answer
    x = 3,430.22

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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.