Home / 6,386.15-8,806.83-4,228.85

Finding the Fourth Proportional to 6,386.15, 8,806.83 and 4,228.85

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Solution

The fourth proportional to 6,386.15, 8,806.83 and 4,228.85 is: 5,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.15 : 8,806.83 = 4,228.85 : x
  2. Step 2: Convert to fraction form
    6,386.15/8,806.83 = 4,228.85/x
  3. Step 3: Cross multiply
    6,386.15x = 8,806.83 × 4,228.85
  4. Step 4: Simplify right side
    6,386.15x = 37,242,769.20
  5. Step 5: Solve for x
    x = 37,242,769.20/6,386.15
  6. Step 6: Final answer
    x = 5,831.80

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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.