Home / 6,311.35-8,708.36-4,321.18

Finding the Fourth Proportional to 6,311.35, 8,708.36 and 4,321.18

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Solution

The fourth proportional to 6,311.35, 8,708.36 and 4,321.18 is: 5,962.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.35 : 8,708.36 = 4,321.18 : x
  2. Step 2: Convert to fraction form
    6,311.35/8,708.36 = 4,321.18/x
  3. Step 3: Cross multiply
    6,311.35x = 8,708.36 × 4,321.18
  4. Step 4: Simplify right side
    6,311.35x = 37,630,404.65
  5. Step 5: Solve for x
    x = 37,630,404.65/6,311.35
  6. Step 6: Final answer
    x = 5,962.34

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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.