Home / 4,928.72-6,801.55-2,690.55

Finding the Fourth Proportional to 4,928.72, 6,801.55 and 2,690.55

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Solution

The fourth proportional to 4,928.72, 6,801.55 and 2,690.55 is: 3,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.72 : 6,801.55 = 2,690.55 : x
  2. Step 2: Convert to fraction form
    4,928.72/6,801.55 = 2,690.55/x
  3. Step 3: Cross multiply
    4,928.72x = 6,801.55 × 2,690.55
  4. Step 4: Simplify right side
    4,928.72x = 18,299,910.35
  5. Step 5: Solve for x
    x = 18,299,910.35/4,928.72
  6. Step 6: Final answer
    x = 3,712.91

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1.5x scale

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.