Home / 5,279.77-7,289.40-3,392.11

Finding the Fourth Proportional to 5,279.77, 7,289.40 and 3,392.11

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Solution

The fourth proportional to 5,279.77, 7,289.40 and 3,392.11 is: 4,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.77 : 7,289.40 = 3,392.11 : x
  2. Step 2: Convert to fraction form
    5,279.77/7,289.40 = 3,392.11/x
  3. Step 3: Cross multiply
    5,279.77x = 7,289.40 × 3,392.11
  4. Step 4: Simplify right side
    5,279.77x = 24,726,446.63
  5. Step 5: Solve for x
    x = 24,726,446.63/5,279.77
  6. Step 6: Final answer
    x = 4,683.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.