Home / 7,767.66-10,719.42-4,230.81

Finding the Fourth Proportional to 7,767.66, 10,719.42 and 4,230.81

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Solution

The fourth proportional to 7,767.66, 10,719.42 and 4,230.81 is: 5,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.66 : 10,719.42 = 4,230.81 : x
  2. Step 2: Convert to fraction form
    7,767.66/10,719.42 = 4,230.81/x
  3. Step 3: Cross multiply
    7,767.66x = 10,719.42 × 4,230.81
  4. Step 4: Simplify right side
    7,767.66x = 45,351,829.33
  5. Step 5: Solve for x
    x = 45,351,829.33/7,767.66
  6. Step 6: Final answer
    x = 5,838.54

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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.