Home / 2,738.61-3,776.85-1,855.62

Finding the Fourth Proportional to 2,738.61, 3,776.85 and 1,855.62

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Solution

The fourth proportional to 2,738.61, 3,776.85 and 1,855.62 is: 2,559.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.61 : 3,776.85 = 1,855.62 : x
  2. Step 2: Convert to fraction form
    2,738.61/3,776.85 = 1,855.62/x
  3. Step 3: Cross multiply
    2,738.61x = 3,776.85 × 1,855.62
  4. Step 4: Simplify right side
    2,738.61x = 7,008,398.40
  5. Step 5: Solve for x
    x = 7,008,398.40/2,738.61
  6. Step 6: Final answer
    x = 2,559.11

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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.