Home / 7,719.20-11,579.03-3,336.77

Finding the Fourth Proportional to 7,719.20, 11,579.03 and 3,336.77

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Solution

The fourth proportional to 7,719.20, 11,579.03 and 3,336.77 is: 5,005.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.20 : 11,579.03 = 3,336.77 : x
  2. Step 2: Convert to fraction form
    7,719.20/11,579.03 = 3,336.77/x
  3. Step 3: Cross multiply
    7,719.20x = 11,579.03 × 3,336.77
  4. Step 4: Simplify right side
    7,719.20x = 38,636,542.76
  5. Step 5: Solve for x
    x = 38,636,542.76/7,719.20
  6. Step 6: Final answer
    x = 5,005.25

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1.5x scale

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.