Home / 5,831.41-8,040.99-3,939.71

Finding the Fourth Proportional to 5,831.41, 8,040.99 and 3,939.71

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Solution

The fourth proportional to 5,831.41, 8,040.99 and 3,939.71 is: 5,432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,831.41 : 8,040.99 = 3,939.71 : x
  2. Step 2: Convert to fraction form
    5,831.41/8,040.99 = 3,939.71/x
  3. Step 3: Cross multiply
    5,831.41x = 8,040.99 × 3,939.71
  4. Step 4: Simplify right side
    5,831.41x = 31,679,128.51
  5. Step 5: Solve for x
    x = 31,679,128.51/5,831.41
  6. Step 6: Final answer
    x = 5,432.50

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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.