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Finding the Fourth Proportional to 5,312.88, 7,331.34 and 3,074.92

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Solution

The fourth proportional to 5,312.88, 7,331.34 and 3,074.92 is: 4,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.88 : 7,331.34 = 3,074.92 : x
  2. Step 2: Convert to fraction form
    5,312.88/7,331.34 = 3,074.92/x
  3. Step 3: Cross multiply
    5,312.88x = 7,331.34 × 3,074.92
  4. Step 4: Simplify right side
    5,312.88x = 22,543,283.99
  5. Step 5: Solve for x
    x = 22,543,283.99/5,312.88
  6. Step 6: Final answer
    x = 4,243.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.