Home / 2,928.11-4,393.22-1,284.53

Finding the Fourth Proportional to 2,928.11, 4,393.22 and 1,284.53

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Solution

The fourth proportional to 2,928.11, 4,393.22 and 1,284.53 is: 1,927.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.11 : 4,393.22 = 1,284.53 : x
  2. Step 2: Convert to fraction form
    2,928.11/4,393.22 = 1,284.53/x
  3. Step 3: Cross multiply
    2,928.11x = 4,393.22 × 1,284.53
  4. Step 4: Simplify right side
    2,928.11x = 5,643,194.50
  5. Step 5: Solve for x
    x = 5,643,194.50/2,928.11
  6. Step 6: Final answer
    x = 1,927.25

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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.