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Finding the Fourth Proportional to 3,959.23, 5,938.71 and 1,880.23

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Solution

The fourth proportional to 3,959.23, 5,938.71 and 1,880.23 is: 2,820.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.23 : 5,938.71 = 1,880.23 : x
  2. Step 2: Convert to fraction form
    3,959.23/5,938.71 = 1,880.23/x
  3. Step 3: Cross multiply
    3,959.23x = 5,938.71 × 1,880.23
  4. Step 4: Simplify right side
    3,959.23x = 11,166,140.70
  5. Step 5: Solve for x
    x = 11,166,140.70/3,959.23
  6. Step 6: Final answer
    x = 2,820.28

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1.5x scale

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.