Home / 7,286.65-10,921.77-2,898.98

Finding the Fourth Proportional to 7,286.65, 10,921.77 and 2,898.98

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Solution

The fourth proportional to 7,286.65, 10,921.77 and 2,898.98 is: 4,345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.65 : 10,921.77 = 2,898.98 : x
  2. Step 2: Convert to fraction form
    7,286.65/10,921.77 = 2,898.98/x
  3. Step 3: Cross multiply
    7,286.65x = 10,921.77 × 2,898.98
  4. Step 4: Simplify right side
    7,286.65x = 31,661,979.14
  5. Step 5: Solve for x
    x = 31,661,979.14/7,286.65
  6. Step 6: Final answer
    x = 4,345.21

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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.