Home / 6,215.12-9,319.80-2,318.48

Finding the Fourth Proportional to 6,215.12, 9,319.80 and 2,318.48

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Solution

The fourth proportional to 6,215.12, 9,319.80 and 2,318.48 is: 3,476.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.12 : 9,319.80 = 2,318.48 : x
  2. Step 2: Convert to fraction form
    6,215.12/9,319.80 = 2,318.48/x
  3. Step 3: Cross multiply
    6,215.12x = 9,319.80 × 2,318.48
  4. Step 4: Simplify right side
    6,215.12x = 21,607,769.90
  5. Step 5: Solve for x
    x = 21,607,769.90/6,215.12
  6. Step 6: Final answer
    x = 3,476.65

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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.