Home / 7,291.94-10,921.43-5,110.40

Finding the Fourth Proportional to 7,291.94, 10,921.43 and 5,110.40

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Solution

The fourth proportional to 7,291.94, 10,921.43 and 5,110.40 is: 7,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.94 : 10,921.43 = 5,110.40 : x
  2. Step 2: Convert to fraction form
    7,291.94/10,921.43 = 5,110.40/x
  3. Step 3: Cross multiply
    7,291.94x = 10,921.43 × 5,110.40
  4. Step 4: Simplify right side
    7,291.94x = 55,812,915.95
  5. Step 5: Solve for x
    x = 55,812,915.95/7,291.94
  6. Step 6: Final answer
    x = 7,654.06

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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.