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Finding the Fourth Proportional to 5,284.96, 7,927.48 and 1,587.22

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Solution

The fourth proportional to 5,284.96, 7,927.48 and 1,587.22 is: 2,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.96 : 7,927.48 = 1,587.22 : x
  2. Step 2: Convert to fraction form
    5,284.96/7,927.48 = 1,587.22/x
  3. Step 3: Cross multiply
    5,284.96x = 7,927.48 × 1,587.22
  4. Step 4: Simplify right side
    5,284.96x = 12,582,654.81
  5. Step 5: Solve for x
    x = 12,582,654.81/5,284.96
  6. Step 6: Final answer
    x = 2,380.84

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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.