Home / 7,018.40-10,521.48-2,634.68

Finding the Fourth Proportional to 7,018.40, 10,521.48 and 2,634.68

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Solution

The fourth proportional to 7,018.40, 10,521.48 and 2,634.68 is: 3,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.40 : 10,521.48 = 2,634.68 : x
  2. Step 2: Convert to fraction form
    7,018.40/10,521.48 = 2,634.68/x
  3. Step 3: Cross multiply
    7,018.40x = 10,521.48 × 2,634.68
  4. Step 4: Simplify right side
    7,018.40x = 27,720,732.93
  5. Step 5: Solve for x
    x = 27,720,732.93/7,018.40
  6. Step 6: Final answer
    x = 3,949.72

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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.