Home / 1,166.88-1,750.56-1,111.68

Finding the Fourth Proportional to 1,166.88, 1,750.56 and 1,111.68

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Solution

The fourth proportional to 1,166.88, 1,750.56 and 1,111.68 is: 1,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.88 : 1,750.56 = 1,111.68 : x
  2. Step 2: Convert to fraction form
    1,166.88/1,750.56 = 1,111.68/x
  3. Step 3: Cross multiply
    1,166.88x = 1,750.56 × 1,111.68
  4. Step 4: Simplify right side
    1,166.88x = 1,946,062.54
  5. Step 5: Solve for x
    x = 1,946,062.54/1,166.88
  6. Step 6: Final answer
    x = 1,667.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.