Home / 2,681.28-4,006.61-2,009.79

Finding the Fourth Proportional to 2,681.28, 4,006.61 and 2,009.79

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Solution

The fourth proportional to 2,681.28, 4,006.61 and 2,009.79 is: 3,003.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.28 : 4,006.61 = 2,009.79 : x
  2. Step 2: Convert to fraction form
    2,681.28/4,006.61 = 2,009.79/x
  3. Step 3: Cross multiply
    2,681.28x = 4,006.61 × 2,009.79
  4. Step 4: Simplify right side
    2,681.28x = 8,052,434.66
  5. Step 5: Solve for x
    x = 8,052,434.66/2,681.28
  6. Step 6: Final answer
    x = 3,003.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.