Home / 4,679.38-7,019.79-1,392.04

Finding the Fourth Proportional to 4,679.38, 7,019.79 and 1,392.04

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Solution

The fourth proportional to 4,679.38, 7,019.79 and 1,392.04 is: 2,088.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.38 : 7,019.79 = 1,392.04 : x
  2. Step 2: Convert to fraction form
    4,679.38/7,019.79 = 1,392.04/x
  3. Step 3: Cross multiply
    4,679.38x = 7,019.79 × 1,392.04
  4. Step 4: Simplify right side
    4,679.38x = 9,771,828.47
  5. Step 5: Solve for x
    x = 9,771,828.47/4,679.38
  6. Step 6: Final answer
    x = 2,088.27

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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.