Home / 1,165.80-1,740.62-1,154.12

Finding the Fourth Proportional to 1,165.80, 1,740.62 and 1,154.12

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Solution

The fourth proportional to 1,165.80, 1,740.62 and 1,154.12 is: 1,723.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.80 : 1,740.62 = 1,154.12 : x
  2. Step 2: Convert to fraction form
    1,165.80/1,740.62 = 1,154.12/x
  3. Step 3: Cross multiply
    1,165.80x = 1,740.62 × 1,154.12
  4. Step 4: Simplify right side
    1,165.80x = 2,008,878.54
  5. Step 5: Solve for x
    x = 2,008,878.54/1,165.80
  6. Step 6: Final answer
    x = 1,723.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.