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Finding the Fourth Proportional to 7,474.84, 10,315.14 and 4,117.97

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Solution

The fourth proportional to 7,474.84, 10,315.14 and 4,117.97 is: 5,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.84 : 10,315.14 = 4,117.97 : x
  2. Step 2: Convert to fraction form
    7,474.84/10,315.14 = 4,117.97/x
  3. Step 3: Cross multiply
    7,474.84x = 10,315.14 × 4,117.97
  4. Step 4: Simplify right side
    7,474.84x = 42,477,385.49
  5. Step 5: Solve for x
    x = 42,477,385.49/7,474.84
  6. Step 6: Final answer
    x = 5,682.72

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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.