Home / 2,885.14-3,981.00-1,608.74

Finding the Fourth Proportional to 2,885.14, 3,981.00 and 1,608.74

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Solution

The fourth proportional to 2,885.14, 3,981.00 and 1,608.74 is: 2,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.14 : 3,981.00 = 1,608.74 : x
  2. Step 2: Convert to fraction form
    2,885.14/3,981.00 = 1,608.74/x
  3. Step 3: Cross multiply
    2,885.14x = 3,981.00 × 1,608.74
  4. Step 4: Simplify right side
    2,885.14x = 6,404,395.00
  5. Step 5: Solve for x
    x = 6,404,395.00/2,885.14
  6. Step 6: Final answer
    x = 2,219.79

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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.