Home / 2,081.32-2,871.50-1,241.45

Finding the Fourth Proportional to 2,081.32, 2,871.50 and 1,241.45

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Solution

The fourth proportional to 2,081.32, 2,871.50 and 1,241.45 is: 1,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.32 : 2,871.50 = 1,241.45 : x
  2. Step 2: Convert to fraction form
    2,081.32/2,871.50 = 1,241.45/x
  3. Step 3: Cross multiply
    2,081.32x = 2,871.50 × 1,241.45
  4. Step 4: Simplify right side
    2,081.32x = 3,564,803.11
  5. Step 5: Solve for x
    x = 3,564,803.11/2,081.32
  6. Step 6: Final answer
    x = 1,712.76

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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.