Home / 2,928.67-4,392.50-1,284.77

Finding the Fourth Proportional to 2,928.67, 4,392.50 and 1,284.77

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Solution

The fourth proportional to 2,928.67, 4,392.50 and 1,284.77 is: 1,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.67 : 4,392.50 = 1,284.77 : x
  2. Step 2: Convert to fraction form
    2,928.67/4,392.50 = 1,284.77/x
  3. Step 3: Cross multiply
    2,928.67x = 4,392.50 × 1,284.77
  4. Step 4: Simplify right side
    2,928.67x = 5,643,366.42
  5. Step 5: Solve for x
    x = 5,643,366.42/2,928.67
  6. Step 6: Final answer
    x = 1,926.94

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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.