Home / 2,691.09-3,715.51-2,406.62

Finding the Fourth Proportional to 2,691.09, 3,715.51 and 2,406.62

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Solution

The fourth proportional to 2,691.09, 3,715.51 and 2,406.62 is: 3,322.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.09 : 3,715.51 = 2,406.62 : x
  2. Step 2: Convert to fraction form
    2,691.09/3,715.51 = 2,406.62/x
  3. Step 3: Cross multiply
    2,691.09x = 3,715.51 × 2,406.62
  4. Step 4: Simplify right side
    2,691.09x = 8,941,820.68
  5. Step 5: Solve for x
    x = 8,941,820.68/2,691.09
  6. Step 6: Final answer
    x = 3,322.76

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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.