Home / 2,928.86-4,390.82-1,368.04

Finding the Fourth Proportional to 2,928.86, 4,390.82 and 1,368.04

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Solution

The fourth proportional to 2,928.86, 4,390.82 and 1,368.04 is: 2,050.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.86 : 4,390.82 = 1,368.04 : x
  2. Step 2: Convert to fraction form
    2,928.86/4,390.82 = 1,368.04/x
  3. Step 3: Cross multiply
    2,928.86x = 4,390.82 × 1,368.04
  4. Step 4: Simplify right side
    2,928.86x = 6,006,817.39
  5. Step 5: Solve for x
    x = 6,006,817.39/2,928.86
  6. Step 6: Final answer
    x = 2,050.91

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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.