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Finding the Fourth Proportional to 5,271.52, 7,905.84 and 2,670.88

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Solution

The fourth proportional to 5,271.52, 7,905.84 and 2,670.88 is: 4,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.52 : 7,905.84 = 2,670.88 : x
  2. Step 2: Convert to fraction form
    5,271.52/7,905.84 = 2,670.88/x
  3. Step 3: Cross multiply
    5,271.52x = 7,905.84 × 2,670.88
  4. Step 4: Simplify right side
    5,271.52x = 21,115,549.94
  5. Step 5: Solve for x
    x = 21,115,549.94/5,271.52
  6. Step 6: Final answer
    x = 4,005.59

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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.