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Finding the Fourth Proportional to 1,827.71, 2,522.24 and 988.41

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Solution

The fourth proportional to 1,827.71, 2,522.24 and 988.41 is: 1,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827.71 : 2,522.24 = 988.41 : x
  2. Step 2: Convert to fraction form
    1,827.71/2,522.24 = 988.41/x
  3. Step 3: Cross multiply
    1,827.71x = 2,522.24 × 988.41
  4. Step 4: Simplify right side
    1,827.71x = 2,493,015.46
  5. Step 5: Solve for x
    x = 2,493,015.46/1,827.71
  6. Step 6: Final answer
    x = 1,364.01

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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.