Home / 7,180.47-10,747.64-3,840.36

Finding the Fourth Proportional to 7,180.47, 10,747.64 and 3,840.36

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Solution

The fourth proportional to 7,180.47, 10,747.64 and 3,840.36 is: 5,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.47 : 10,747.64 = 3,840.36 : x
  2. Step 2: Convert to fraction form
    7,180.47/10,747.64 = 3,840.36/x
  3. Step 3: Cross multiply
    7,180.47x = 10,747.64 × 3,840.36
  4. Step 4: Simplify right side
    7,180.47x = 41,274,787.55
  5. Step 5: Solve for x
    x = 41,274,787.55/7,180.47
  6. Step 6: Final answer
    x = 5,748.20

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1.5x scale

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.