Home / 5,139.40-7,696.67-2,941.47

Finding the Fourth Proportional to 5,139.40, 7,696.67 and 2,941.47

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Solution

The fourth proportional to 5,139.40, 7,696.67 and 2,941.47 is: 4,405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.40 : 7,696.67 = 2,941.47 : x
  2. Step 2: Convert to fraction form
    5,139.40/7,696.67 = 2,941.47/x
  3. Step 3: Cross multiply
    5,139.40x = 7,696.67 × 2,941.47
  4. Step 4: Simplify right side
    5,139.40x = 22,639,523.90
  5. Step 5: Solve for x
    x = 22,639,523.90/5,139.40
  6. Step 6: Final answer
    x = 4,405.09

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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.