Home / 7,109.52-10,666.32-2,179.88

Finding the Fourth Proportional to 7,109.52, 10,666.32 and 2,179.88

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Solution

The fourth proportional to 7,109.52, 10,666.32 and 2,179.88 is: 3,270.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.52 : 10,666.32 = 2,179.88 : x
  2. Step 2: Convert to fraction form
    7,109.52/10,666.32 = 2,179.88/x
  3. Step 3: Cross multiply
    7,109.52x = 10,666.32 × 2,179.88
  4. Step 4: Simplify right side
    7,109.52x = 23,251,332.48
  5. Step 5: Solve for x
    x = 23,251,332.48/7,109.52
  6. Step 6: Final answer
    x = 3,270.45

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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.