Home / 7,320.04-10,979.32-3,159.88

Finding the Fourth Proportional to 7,320.04, 10,979.32 and 3,159.88

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Solution

The fourth proportional to 7,320.04, 10,979.32 and 3,159.88 is: 4,739.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.04 : 10,979.32 = 3,159.88 : x
  2. Step 2: Convert to fraction form
    7,320.04/10,979.32 = 3,159.88/x
  3. Step 3: Cross multiply
    7,320.04x = 10,979.32 × 3,159.88
  4. Step 4: Simplify right side
    7,320.04x = 34,693,333.68
  5. Step 5: Solve for x
    x = 34,693,333.68/7,320.04
  6. Step 6: Final answer
    x = 4,739.50

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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.