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Finding the Fourth Proportional to 1,607.76, 2,219.22 and 944.79

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Solution

The fourth proportional to 1,607.76, 2,219.22 and 944.79 is: 1,304.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.76 : 2,219.22 = 944.79 : x
  2. Step 2: Convert to fraction form
    1,607.76/2,219.22 = 944.79/x
  3. Step 3: Cross multiply
    1,607.76x = 2,219.22 × 944.79
  4. Step 4: Simplify right side
    1,607.76x = 2,096,696.86
  5. Step 5: Solve for x
    x = 2,096,696.86/1,607.76
  6. Step 6: Final answer
    x = 1,304.11

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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.