Home / 1,293.06-1,928.74-1,186.92

Finding the Fourth Proportional to 1,293.06, 1,928.74 and 1,186.92

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Solution

The fourth proportional to 1,293.06, 1,928.74 and 1,186.92 is: 1,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.06 : 1,928.74 = 1,186.92 : x
  2. Step 2: Convert to fraction form
    1,293.06/1,928.74 = 1,186.92/x
  3. Step 3: Cross multiply
    1,293.06x = 1,928.74 × 1,186.92
  4. Step 4: Simplify right side
    1,293.06x = 2,289,260.08
  5. Step 5: Solve for x
    x = 2,289,260.08/1,293.06
  6. Step 6: Final answer
    x = 1,770.42

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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.