Home / 7,719.87-10,653.78-4,362.82

Finding the Fourth Proportional to 7,719.87, 10,653.78 and 4,362.82

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Solution

The fourth proportional to 7,719.87, 10,653.78 and 4,362.82 is: 6,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.87 : 10,653.78 = 4,362.82 : x
  2. Step 2: Convert to fraction form
    7,719.87/10,653.78 = 4,362.82/x
  3. Step 3: Cross multiply
    7,719.87x = 10,653.78 × 4,362.82
  4. Step 4: Simplify right side
    7,719.87x = 46,480,524.46
  5. Step 5: Solve for x
    x = 46,480,524.46/7,719.87
  6. Step 6: Final answer
    x = 6,020.90

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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.