Home / 6,485.82-8,948.98-3,831.85

Finding the Fourth Proportional to 6,485.82, 8,948.98 and 3,831.85

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Solution

The fourth proportional to 6,485.82, 8,948.98 and 3,831.85 is: 5,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.82 : 8,948.98 = 3,831.85 : x
  2. Step 2: Convert to fraction form
    6,485.82/8,948.98 = 3,831.85/x
  3. Step 3: Cross multiply
    6,485.82x = 8,948.98 × 3,831.85
  4. Step 4: Simplify right side
    6,485.82x = 34,291,149.01
  5. Step 5: Solve for x
    x = 34,291,149.01/6,485.82
  6. Step 6: Final answer
    x = 5,287.10

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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.