Home / 3,019.67-4,163.28-1,955.55

Finding the Fourth Proportional to 3,019.67, 4,163.28 and 1,955.55

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Solution

The fourth proportional to 3,019.67, 4,163.28 and 1,955.55 is: 2,696.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.67 : 4,163.28 = 1,955.55 : x
  2. Step 2: Convert to fraction form
    3,019.67/4,163.28 = 1,955.55/x
  3. Step 3: Cross multiply
    3,019.67x = 4,163.28 × 1,955.55
  4. Step 4: Simplify right side
    3,019.67x = 8,141,502.20
  5. Step 5: Solve for x
    x = 8,141,502.20/3,019.67
  6. Step 6: Final answer
    x = 2,696.16

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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.