Home / 2,930.23-4,395.29-850.15

Finding the Fourth Proportional to 2,930.23, 4,395.29 and 850.15

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Solution

The fourth proportional to 2,930.23, 4,395.29 and 850.15 is: 1,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.23 : 4,395.29 = 850.15 : x
  2. Step 2: Convert to fraction form
    2,930.23/4,395.29 = 850.15/x
  3. Step 3: Cross multiply
    2,930.23x = 4,395.29 × 850.15
  4. Step 4: Simplify right side
    2,930.23x = 3,736,655.79
  5. Step 5: Solve for x
    x = 3,736,655.79/2,930.23
  6. Step 6: Final answer
    x = 1,275.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.