Home / 2,855.90-4,260.38-2,657.04

Finding the Fourth Proportional to 2,855.90, 4,260.38 and 2,657.04

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Solution

The fourth proportional to 2,855.90, 4,260.38 and 2,657.04 is: 3,963.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.90 : 4,260.38 = 2,657.04 : x
  2. Step 2: Convert to fraction form
    2,855.90/4,260.38 = 2,657.04/x
  3. Step 3: Cross multiply
    2,855.90x = 4,260.38 × 2,657.04
  4. Step 4: Simplify right side
    2,855.90x = 11,320,000.08
  5. Step 5: Solve for x
    x = 11,320,000.08/2,855.90
  6. Step 6: Final answer
    x = 3,963.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.