Home / 5,180.06-7,147.87-2,941.92

Finding the Fourth Proportional to 5,180.06, 7,147.87 and 2,941.92

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Solution

The fourth proportional to 5,180.06, 7,147.87 and 2,941.92 is: 4,059.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.06 : 7,147.87 = 2,941.92 : x
  2. Step 2: Convert to fraction form
    5,180.06/7,147.87 = 2,941.92/x
  3. Step 3: Cross multiply
    5,180.06x = 7,147.87 × 2,941.92
  4. Step 4: Simplify right side
    5,180.06x = 21,028,461.71
  5. Step 5: Solve for x
    x = 21,028,461.71/5,180.06
  6. Step 6: Final answer
    x = 4,059.50

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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.