Home / 3,191.60-4,778.12-1,955.27

Finding the Fourth Proportional to 3,191.60, 4,778.12 and 1,955.27

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Solution

The fourth proportional to 3,191.60, 4,778.12 and 1,955.27 is: 2,927.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.60 : 4,778.12 = 1,955.27 : x
  2. Step 2: Convert to fraction form
    3,191.60/4,778.12 = 1,955.27/x
  3. Step 3: Cross multiply
    3,191.60x = 4,778.12 × 1,955.27
  4. Step 4: Simplify right side
    3,191.60x = 9,342,495.69
  5. Step 5: Solve for x
    x = 9,342,495.69/3,191.60
  6. Step 6: Final answer
    x = 2,927.22

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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.