Home / 5,180.56-7,148.64-3,084.28

Finding the Fourth Proportional to 5,180.56, 7,148.64 and 3,084.28

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Solution

The fourth proportional to 5,180.56, 7,148.64 and 3,084.28 is: 4,255.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.56 : 7,148.64 = 3,084.28 : x
  2. Step 2: Convert to fraction form
    5,180.56/7,148.64 = 3,084.28/x
  3. Step 3: Cross multiply
    5,180.56x = 7,148.64 × 3,084.28
  4. Step 4: Simplify right side
    5,180.56x = 22,048,407.38
  5. Step 5: Solve for x
    x = 22,048,407.38/5,180.56
  6. Step 6: Final answer
    x = 4,255.99

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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.