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Finding the Fourth Proportional to 4,992.13, 7,489.01 and 1,528.57

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Solution

The fourth proportional to 4,992.13, 7,489.01 and 1,528.57 is: 2,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.13 : 7,489.01 = 1,528.57 : x
  2. Step 2: Convert to fraction form
    4,992.13/7,489.01 = 1,528.57/x
  3. Step 3: Cross multiply
    4,992.13x = 7,489.01 × 1,528.57
  4. Step 4: Simplify right side
    4,992.13x = 11,447,468.37
  5. Step 5: Solve for x
    x = 11,447,468.37/4,992.13
  6. Step 6: Final answer
    x = 2,293.10

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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.