Home / 7,428.18-11,141.88-2,497.92

Finding the Fourth Proportional to 7,428.18, 11,141.88 and 2,497.92

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Solution

The fourth proportional to 7,428.18, 11,141.88 and 2,497.92 is: 3,746.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.18 : 11,141.88 = 2,497.92 : x
  2. Step 2: Convert to fraction form
    7,428.18/11,141.88 = 2,497.92/x
  3. Step 3: Cross multiply
    7,428.18x = 11,141.88 × 2,497.92
  4. Step 4: Simplify right side
    7,428.18x = 27,831,524.89
  5. Step 5: Solve for x
    x = 27,831,524.89/7,428.18
  6. Step 6: Final answer
    x = 3,746.75

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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.