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Finding the Fourth Proportional to 3,141.56, 4,333.02 and 1,881.20

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Solution

The fourth proportional to 3,141.56, 4,333.02 and 1,881.20 is: 2,594.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.56 : 4,333.02 = 1,881.20 : x
  2. Step 2: Convert to fraction form
    3,141.56/4,333.02 = 1,881.20/x
  3. Step 3: Cross multiply
    3,141.56x = 4,333.02 × 1,881.20
  4. Step 4: Simplify right side
    3,141.56x = 8,151,277.22
  5. Step 5: Solve for x
    x = 8,151,277.22/3,141.56
  6. Step 6: Final answer
    x = 2,594.66

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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.