Home / 4,878.84-7,321.14-2,415

Finding the Fourth Proportional to 4,878.84, 7,321.14 and 2,415

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Solution

The fourth proportional to 4,878.84, 7,321.14 and 2,415 is: 3,623.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.84 : 7,321.14 = 2,415 : x
  2. Step 2: Convert to fraction form
    4,878.84/7,321.14 = 2,415/x
  3. Step 3: Cross multiply
    4,878.84x = 7,321.14 × 2,415
  4. Step 4: Simplify right side
    4,878.84x = 17,680,553.10
  5. Step 5: Solve for x
    x = 17,680,553.10/4,878.84
  6. Step 6: Final answer
    x = 3,623.93

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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.