Home / 1,928.10-2,893.20-1,050.55

Finding the Fourth Proportional to 1,928.10, 2,893.20 and 1,050.55

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Solution

The fourth proportional to 1,928.10, 2,893.20 and 1,050.55 is: 1,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.10 : 2,893.20 = 1,050.55 : x
  2. Step 2: Convert to fraction form
    1,928.10/2,893.20 = 1,050.55/x
  3. Step 3: Cross multiply
    1,928.10x = 2,893.20 × 1,050.55
  4. Step 4: Simplify right side
    1,928.10x = 3,039,451.26
  5. Step 5: Solve for x
    x = 3,039,451.26/1,928.10
  6. Step 6: Final answer
    x = 1,576.40

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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.