Home / 2,122.51-2,930.17-1,649.34

Finding the Fourth Proportional to 2,122.51, 2,930.17 and 1,649.34

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Solution

The fourth proportional to 2,122.51, 2,930.17 and 1,649.34 is: 2,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.51 : 2,930.17 = 1,649.34 : x
  2. Step 2: Convert to fraction form
    2,122.51/2,930.17 = 1,649.34/x
  3. Step 3: Cross multiply
    2,122.51x = 2,930.17 × 1,649.34
  4. Step 4: Simplify right side
    2,122.51x = 4,832,846.59
  5. Step 5: Solve for x
    x = 4,832,846.59/2,122.51
  6. Step 6: Final answer
    x = 2,276.95

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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.