Home / 7,282.75-10,050.20-3,970.75

Finding the Fourth Proportional to 7,282.75, 10,050.20 and 3,970.75

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Solution

The fourth proportional to 7,282.75, 10,050.20 and 3,970.75 is: 5,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,282.75 : 10,050.20 = 3,970.75 : x
  2. Step 2: Convert to fraction form
    7,282.75/10,050.20 = 3,970.75/x
  3. Step 3: Cross multiply
    7,282.75x = 10,050.20 × 3,970.75
  4. Step 4: Simplify right side
    7,282.75x = 39,906,831.65
  5. Step 5: Solve for x
    x = 39,906,831.65/7,282.75
  6. Step 6: Final answer
    x = 5,479.64

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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.