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Finding the Fourth Proportional to 3,888.84, 5,832.21 and 2,656.02

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Solution

The fourth proportional to 3,888.84, 5,832.21 and 2,656.02 is: 3,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.84 : 5,832.21 = 2,656.02 : x
  2. Step 2: Convert to fraction form
    3,888.84/5,832.21 = 2,656.02/x
  3. Step 3: Cross multiply
    3,888.84x = 5,832.21 × 2,656.02
  4. Step 4: Simplify right side
    3,888.84x = 15,490,466.40
  5. Step 5: Solve for x
    x = 15,490,466.40/3,888.84
  6. Step 6: Final answer
    x = 3,983.31

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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.