Home / 2,885.78-3,982.29-1,626.91

Finding the Fourth Proportional to 2,885.78, 3,982.29 and 1,626.91

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Solution

The fourth proportional to 2,885.78, 3,982.29 and 1,626.91 is: 2,245.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.78 : 3,982.29 = 1,626.91 : x
  2. Step 2: Convert to fraction form
    2,885.78/3,982.29 = 1,626.91/x
  3. Step 3: Cross multiply
    2,885.78x = 3,982.29 × 1,626.91
  4. Step 4: Simplify right side
    2,885.78x = 6,478,827.42
  5. Step 5: Solve for x
    x = 6,478,827.42/2,885.78
  6. Step 6: Final answer
    x = 2,245.09

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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.