Home / 2,909.11-4,013.91-1,649.87

Finding the Fourth Proportional to 2,909.11, 4,013.91 and 1,649.87

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Solution

The fourth proportional to 2,909.11, 4,013.91 and 1,649.87 is: 2,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.11 : 4,013.91 = 1,649.87 : x
  2. Step 2: Convert to fraction form
    2,909.11/4,013.91 = 1,649.87/x
  3. Step 3: Cross multiply
    2,909.11x = 4,013.91 × 1,649.87
  4. Step 4: Simplify right side
    2,909.11x = 6,622,409.62
  5. Step 5: Solve for x
    x = 6,622,409.62/2,909.11
  6. Step 6: Final answer
    x = 2,276.44

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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.