Home / 4,748.13-7,122.29-1,631.72

Finding the Fourth Proportional to 4,748.13, 7,122.29 and 1,631.72

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Solution

The fourth proportional to 4,748.13, 7,122.29 and 1,631.72 is: 2,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.13 : 7,122.29 = 1,631.72 : x
  2. Step 2: Convert to fraction form
    4,748.13/7,122.29 = 1,631.72/x
  3. Step 3: Cross multiply
    4,748.13x = 7,122.29 × 1,631.72
  4. Step 4: Simplify right side
    4,748.13x = 11,621,539.27
  5. Step 5: Solve for x
    x = 11,621,539.27/4,748.13
  6. Step 6: Final answer
    x = 2,447.60

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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.