Home / 5,277.05-7,915.64-1,381.35

Finding the Fourth Proportional to 5,277.05, 7,915.64 and 1,381.35

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Solution

The fourth proportional to 5,277.05, 7,915.64 and 1,381.35 is: 2,072.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.05 : 7,915.64 = 1,381.35 : x
  2. Step 2: Convert to fraction form
    5,277.05/7,915.64 = 1,381.35/x
  3. Step 3: Cross multiply
    5,277.05x = 7,915.64 × 1,381.35
  4. Step 4: Simplify right side
    5,277.05x = 10,934,262.41
  5. Step 5: Solve for x
    x = 10,934,262.41/5,277.05
  6. Step 6: Final answer
    x = 2,072.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.