Home / 7,616.39-11,422.15-2,421.05

Finding the Fourth Proportional to 7,616.39, 11,422.15 and 2,421.05

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Solution

The fourth proportional to 7,616.39, 11,422.15 and 2,421.05 is: 3,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.39 : 11,422.15 = 2,421.05 : x
  2. Step 2: Convert to fraction form
    7,616.39/11,422.15 = 2,421.05/x
  3. Step 3: Cross multiply
    7,616.39x = 11,422.15 × 2,421.05
  4. Step 4: Simplify right side
    7,616.39x = 27,653,533.09
  5. Step 5: Solve for x
    x = 27,653,533.09/7,616.39
  6. Step 6: Final answer
    x = 3,630.80

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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.