Home / 6,831.26-9,429.23-3,999.30

Finding the Fourth Proportional to 6,831.26, 9,429.23 and 3,999.30

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Solution

The fourth proportional to 6,831.26, 9,429.23 and 3,999.30 is: 5,520.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,831.26 : 9,429.23 = 3,999.30 : x
  2. Step 2: Convert to fraction form
    6,831.26/9,429.23 = 3,999.30/x
  3. Step 3: Cross multiply
    6,831.26x = 9,429.23 × 3,999.30
  4. Step 4: Simplify right side
    6,831.26x = 37,710,294.18
  5. Step 5: Solve for x
    x = 37,710,294.18/6,831.26
  6. Step 6: Final answer
    x = 5,520.26

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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.