Home / 7,579.32-11,369.67-3,421.29

Finding the Fourth Proportional to 7,579.32, 11,369.67 and 3,421.29

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Solution

The fourth proportional to 7,579.32, 11,369.67 and 3,421.29 is: 5,132.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.32 : 11,369.67 = 3,421.29 : x
  2. Step 2: Convert to fraction form
    7,579.32/11,369.67 = 3,421.29/x
  3. Step 3: Cross multiply
    7,579.32x = 11,369.67 × 3,421.29
  4. Step 4: Simplify right side
    7,579.32x = 38,898,904.13
  5. Step 5: Solve for x
    x = 38,898,904.13/7,579.32
  6. Step 6: Final answer
    x = 5,132.24

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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.