Home / 1,190.79-1,794.38-1,135.17

Finding the Fourth Proportional to 1,190.79, 1,794.38 and 1,135.17

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Solution

The fourth proportional to 1,190.79, 1,794.38 and 1,135.17 is: 1,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.79 : 1,794.38 = 1,135.17 : x
  2. Step 2: Convert to fraction form
    1,190.79/1,794.38 = 1,135.17/x
  3. Step 3: Cross multiply
    1,190.79x = 1,794.38 × 1,135.17
  4. Step 4: Simplify right side
    1,190.79x = 2,036,920.67
  5. Step 5: Solve for x
    x = 2,036,920.67/1,190.79
  6. Step 6: Final answer
    x = 1,710.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.