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Finding the Fourth Proportional to 3,885.57, 5,358.96 and 2,393.01

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Solution

The fourth proportional to 3,885.57, 5,358.96 and 2,393.01 is: 3,300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.57 : 5,358.96 = 2,393.01 : x
  2. Step 2: Convert to fraction form
    3,885.57/5,358.96 = 2,393.01/x
  3. Step 3: Cross multiply
    3,885.57x = 5,358.96 × 2,393.01
  4. Step 4: Simplify right side
    3,885.57x = 12,824,044.87
  5. Step 5: Solve for x
    x = 12,824,044.87/3,885.57
  6. Step 6: Final answer
    x = 3,300.43

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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.