Home / 7,767.99-10,719.45-4,231.13

Finding the Fourth Proportional to 7,767.99, 10,719.45 and 4,231.13

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Solution

The fourth proportional to 7,767.99, 10,719.45 and 4,231.13 is: 5,838.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.99 : 10,719.45 = 4,231.13 : x
  2. Step 2: Convert to fraction form
    7,767.99/10,719.45 = 4,231.13/x
  3. Step 3: Cross multiply
    7,767.99x = 10,719.45 × 4,231.13
  4. Step 4: Simplify right side
    7,767.99x = 45,355,332.88
  5. Step 5: Solve for x
    x = 45,355,332.88/7,767.99
  6. Step 6: Final answer
    x = 5,838.75

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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.