Home / 3,117.78-4,675.71-1,170.42

Finding the Fourth Proportional to 3,117.78, 4,675.71 and 1,170.42

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Solution

The fourth proportional to 3,117.78, 4,675.71 and 1,170.42 is: 1,755.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.78 : 4,675.71 = 1,170.42 : x
  2. Step 2: Convert to fraction form
    3,117.78/4,675.71 = 1,170.42/x
  3. Step 3: Cross multiply
    3,117.78x = 4,675.71 × 1,170.42
  4. Step 4: Simplify right side
    3,117.78x = 5,472,544.50
  5. Step 5: Solve for x
    x = 5,472,544.50/3,117.78
  6. Step 6: Final answer
    x = 1,755.27

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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.