Home / 7,767.58-10,719.48-4,230.85

Finding the Fourth Proportional to 7,767.58, 10,719.48 and 4,230.85

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Solution

The fourth proportional to 7,767.58, 10,719.48 and 4,230.85 is: 5,838.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.58 : 10,719.48 = 4,230.85 : x
  2. Step 2: Convert to fraction form
    7,767.58/10,719.48 = 4,230.85/x
  3. Step 3: Cross multiply
    7,767.58x = 10,719.48 × 4,230.85
  4. Step 4: Simplify right side
    7,767.58x = 45,352,511.96
  5. Step 5: Solve for x
    x = 45,352,511.96/7,767.58
  6. Step 6: Final answer
    x = 5,838.69

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1.5x scale

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.