Home / 2,907.08-4,011.36-2,197.88

Finding the Fourth Proportional to 2,907.08, 4,011.36 and 2,197.88

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Solution

The fourth proportional to 2,907.08, 4,011.36 and 2,197.88 is: 3,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.08 : 4,011.36 = 2,197.88 : x
  2. Step 2: Convert to fraction form
    2,907.08/4,011.36 = 2,197.88/x
  3. Step 3: Cross multiply
    2,907.08x = 4,011.36 × 2,197.88
  4. Step 4: Simplify right side
    2,907.08x = 8,816,487.92
  5. Step 5: Solve for x
    x = 8,816,487.92/2,907.08
  6. Step 6: Final answer
    x = 3,032.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.