Home / 2,173.11-2,998.89-1,178.39

Finding the Fourth Proportional to 2,173.11, 2,998.89 and 1,178.39

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Solution

The fourth proportional to 2,173.11, 2,998.89 and 1,178.39 is: 1,626.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.11 : 2,998.89 = 1,178.39 : x
  2. Step 2: Convert to fraction form
    2,173.11/2,998.89 = 1,178.39/x
  3. Step 3: Cross multiply
    2,173.11x = 2,998.89 × 1,178.39
  4. Step 4: Simplify right side
    2,173.11x = 3,533,852.62
  5. Step 5: Solve for x
    x = 3,533,852.62/2,173.11
  6. Step 6: Final answer
    x = 1,626.17

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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.