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Finding the Fourth Proportional to 3,968.91, 5,953.37 and 1,372.05

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Solution

The fourth proportional to 3,968.91, 5,953.37 and 1,372.05 is: 2,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.91 : 5,953.37 = 1,372.05 : x
  2. Step 2: Convert to fraction form
    3,968.91/5,953.37 = 1,372.05/x
  3. Step 3: Cross multiply
    3,968.91x = 5,953.37 × 1,372.05
  4. Step 4: Simplify right side
    3,968.91x = 8,168,314.45
  5. Step 5: Solve for x
    x = 8,168,314.45/3,968.91
  6. Step 6: Final answer
    x = 2,058.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.