Home / 5,185.19-7,155.66-3,195.63

Finding the Fourth Proportional to 5,185.19, 7,155.66 and 3,195.63

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Solution

The fourth proportional to 5,185.19, 7,155.66 and 3,195.63 is: 4,410.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.19 : 7,155.66 = 3,195.63 : x
  2. Step 2: Convert to fraction form
    5,185.19/7,155.66 = 3,195.63/x
  3. Step 3: Cross multiply
    5,185.19x = 7,155.66 × 3,195.63
  4. Step 4: Simplify right side
    5,185.19x = 22,866,841.77
  5. Step 5: Solve for x
    x = 22,866,841.77/5,185.19
  6. Step 6: Final answer
    x = 4,410.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.