Home / 6,215.08-9,321.90-2,319.40

Finding the Fourth Proportional to 6,215.08, 9,321.90 and 2,319.40

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Solution

The fourth proportional to 6,215.08, 9,321.90 and 2,319.40 is: 3,478.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.08 : 9,321.90 = 2,319.40 : x
  2. Step 2: Convert to fraction form
    6,215.08/9,321.90 = 2,319.40/x
  3. Step 3: Cross multiply
    6,215.08x = 9,321.90 × 2,319.40
  4. Step 4: Simplify right side
    6,215.08x = 21,621,214.86
  5. Step 5: Solve for x
    x = 21,621,214.86/6,215.08
  6. Step 6: Final answer
    x = 3,478.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.