Home / 5,180.14-7,148.64-3,055.72

Finding the Fourth Proportional to 5,180.14, 7,148.64 and 3,055.72

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Solution

The fourth proportional to 5,180.14, 7,148.64 and 3,055.72 is: 4,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.14 : 7,148.64 = 3,055.72 : x
  2. Step 2: Convert to fraction form
    5,180.14/7,148.64 = 3,055.72/x
  3. Step 3: Cross multiply
    5,180.14x = 7,148.64 × 3,055.72
  4. Step 4: Simplify right side
    5,180.14x = 21,844,242.22
  5. Step 5: Solve for x
    x = 21,844,242.22/5,180.14
  6. Step 6: Final answer
    x = 4,216.92

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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.