Home / 5,222.40-7,831.08-1,933.80

Finding the Fourth Proportional to 5,222.40, 7,831.08 and 1,933.80

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Solution

The fourth proportional to 5,222.40, 7,831.08 and 1,933.80 is: 2,899.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.40 : 7,831.08 = 1,933.80 : x
  2. Step 2: Convert to fraction form
    5,222.40/7,831.08 = 1,933.80/x
  3. Step 3: Cross multiply
    5,222.40x = 7,831.08 × 1,933.80
  4. Step 4: Simplify right side
    5,222.40x = 15,143,742.50
  5. Step 5: Solve for x
    x = 15,143,742.50/5,222.40
  6. Step 6: Final answer
    x = 2,899.77

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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.