Home / 6,831.12-10,235.70-3,911.52

Finding the Fourth Proportional to 6,831.12, 10,235.70 and 3,911.52

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Solution

The fourth proportional to 6,831.12, 10,235.70 and 3,911.52 is: 5,860.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,831.12 : 10,235.70 = 3,911.52 : x
  2. Step 2: Convert to fraction form
    6,831.12/10,235.70 = 3,911.52/x
  3. Step 3: Cross multiply
    6,831.12x = 10,235.70 × 3,911.52
  4. Step 4: Simplify right side
    6,831.12x = 40,037,145.26
  5. Step 5: Solve for x
    x = 40,037,145.26/6,831.12
  6. Step 6: Final answer
    x = 5,860.99

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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.