Home / 1,884.11-2,597.81-1,220.72

Finding the Fourth Proportional to 1,884.11, 2,597.81 and 1,220.72

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Solution

The fourth proportional to 1,884.11, 2,597.81 and 1,220.72 is: 1,683.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884.11 : 2,597.81 = 1,220.72 : x
  2. Step 2: Convert to fraction form
    1,884.11/2,597.81 = 1,220.72/x
  3. Step 3: Cross multiply
    1,884.11x = 2,597.81 × 1,220.72
  4. Step 4: Simplify right side
    1,884.11x = 3,171,179.53
  5. Step 5: Solve for x
    x = 3,171,179.53/1,884.11
  6. Step 6: Final answer
    x = 1,683.12

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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.