Home / 2,102.63-2,901.83-1,171.13

Finding the Fourth Proportional to 2,102.63, 2,901.83 and 1,171.13

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Solution

The fourth proportional to 2,102.63, 2,901.83 and 1,171.13 is: 1,616.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.63 : 2,901.83 = 1,171.13 : x
  2. Step 2: Convert to fraction form
    2,102.63/2,901.83 = 1,171.13/x
  3. Step 3: Cross multiply
    2,102.63x = 2,901.83 × 1,171.13
  4. Step 4: Simplify right side
    2,102.63x = 3,398,399.80
  5. Step 5: Solve for x
    x = 3,398,399.80/2,102.63
  6. Step 6: Final answer
    x = 1,616.27

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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.