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Finding the Fourth Proportional to 2,992.46, 4,488.74 and 1,530.72

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Solution

The fourth proportional to 2,992.46, 4,488.74 and 1,530.72 is: 2,296.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.46 : 4,488.74 = 1,530.72 : x
  2. Step 2: Convert to fraction form
    2,992.46/4,488.74 = 1,530.72/x
  3. Step 3: Cross multiply
    2,992.46x = 4,488.74 × 1,530.72
  4. Step 4: Simplify right side
    2,992.46x = 6,871,004.09
  5. Step 5: Solve for x
    x = 6,871,004.09/2,992.46
  6. Step 6: Final answer
    x = 2,296.11

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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.