Home / 2,855.36-3,925.28-2,455.55

Finding the Fourth Proportional to 2,855.36, 3,925.28 and 2,455.55

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Solution

The fourth proportional to 2,855.36, 3,925.28 and 2,455.55 is: 3,375.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.36 : 3,925.28 = 2,455.55 : x
  2. Step 2: Convert to fraction form
    2,855.36/3,925.28 = 2,455.55/x
  3. Step 3: Cross multiply
    2,855.36x = 3,925.28 × 2,455.55
  4. Step 4: Simplify right side
    2,855.36x = 9,638,721.30
  5. Step 5: Solve for x
    x = 9,638,721.30/2,855.36
  6. Step 6: Final answer
    x = 3,375.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.