Home / 5,831.72-8,739.78-2,130.48

Finding the Fourth Proportional to 5,831.72, 8,739.78 and 2,130.48

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Solution

The fourth proportional to 5,831.72, 8,739.78 and 2,130.48 is: 3,192.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,831.72 : 8,739.78 = 2,130.48 : x
  2. Step 2: Convert to fraction form
    5,831.72/8,739.78 = 2,130.48/x
  3. Step 3: Cross multiply
    5,831.72x = 8,739.78 × 2,130.48
  4. Step 4: Simplify right side
    5,831.72x = 18,619,926.49
  5. Step 5: Solve for x
    x = 18,619,926.49/5,831.72
  6. Step 6: Final answer
    x = 3,192.87

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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.