Home / 5,112.84-7,669.36-1,415.04

Finding the Fourth Proportional to 5,112.84, 7,669.36 and 1,415.04

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Solution

The fourth proportional to 5,112.84, 7,669.36 and 1,415.04 is: 2,122.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.84 : 7,669.36 = 1,415.04 : x
  2. Step 2: Convert to fraction form
    5,112.84/7,669.36 = 1,415.04/x
  3. Step 3: Cross multiply
    5,112.84x = 7,669.36 × 1,415.04
  4. Step 4: Simplify right side
    5,112.84x = 10,852,451.17
  5. Step 5: Solve for x
    x = 10,852,451.17/5,112.84
  6. Step 6: Final answer
    x = 2,122.59

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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.