Home / 1,185.74-1,769.35-1,178.94

Finding the Fourth Proportional to 1,185.74, 1,769.35 and 1,178.94

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Solution

The fourth proportional to 1,185.74, 1,769.35 and 1,178.94 is: 1,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185.74 : 1,769.35 = 1,178.94 : x
  2. Step 2: Convert to fraction form
    1,185.74/1,769.35 = 1,178.94/x
  3. Step 3: Cross multiply
    1,185.74x = 1,769.35 × 1,178.94
  4. Step 4: Simplify right side
    1,185.74x = 2,085,957.49
  5. Step 5: Solve for x
    x = 2,085,957.49/1,185.74
  6. Step 6: Final answer
    x = 1,759.20

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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.