Home / 1,165.43-1,740.06-1,153.73

Finding the Fourth Proportional to 1,165.43, 1,740.06 and 1,153.73

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Solution

The fourth proportional to 1,165.43, 1,740.06 and 1,153.73 is: 1,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.43 : 1,740.06 = 1,153.73 : x
  2. Step 2: Convert to fraction form
    1,165.43/1,740.06 = 1,153.73/x
  3. Step 3: Cross multiply
    1,165.43x = 1,740.06 × 1,153.73
  4. Step 4: Simplify right side
    1,165.43x = 2,007,563.77
  5. Step 5: Solve for x
    x = 2,007,563.77/1,165.43
  6. Step 6: Final answer
    x = 1,722.59

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1.5x scale

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.