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Finding the Fourth Proportional to 7,088.45, 9,781.68 and 3,944.44

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Solution

The fourth proportional to 7,088.45, 9,781.68 and 3,944.44 is: 5,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,088.45 : 9,781.68 = 3,944.44 : x
  2. Step 2: Convert to fraction form
    7,088.45/9,781.68 = 3,944.44/x
  3. Step 3: Cross multiply
    7,088.45x = 9,781.68 × 3,944.44
  4. Step 4: Simplify right side
    7,088.45x = 38,583,225.41
  5. Step 5: Solve for x
    x = 38,583,225.41/7,088.45
  6. Step 6: Final answer
    x = 5,443.11

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1.5x scale

Why These Related Problems?

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