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Finding the Fourth Proportional to 5,607.91, 7,738.66 and 3,089.90

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Solution

The fourth proportional to 5,607.91, 7,738.66 and 3,089.90 is: 4,263.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.91 : 7,738.66 = 3,089.90 : x
  2. Step 2: Convert to fraction form
    5,607.91/7,738.66 = 3,089.90/x
  3. Step 3: Cross multiply
    5,607.91x = 7,738.66 × 3,089.90
  4. Step 4: Simplify right side
    5,607.91x = 23,911,685.53
  5. Step 5: Solve for x
    x = 23,911,685.53/5,607.91
  6. Step 6: Final answer
    x = 4,263.92

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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.