Home / 7,540.17-10,405.85-4,889.85

Finding the Fourth Proportional to 7,540.17, 10,405.85 and 4,889.85

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Solution

The fourth proportional to 7,540.17, 10,405.85 and 4,889.85 is: 6,748.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.17 : 10,405.85 = 4,889.85 : x
  2. Step 2: Convert to fraction form
    7,540.17/10,405.85 = 4,889.85/x
  3. Step 3: Cross multiply
    7,540.17x = 10,405.85 × 4,889.85
  4. Step 4: Simplify right side
    7,540.17x = 50,883,021.17
  5. Step 5: Solve for x
    x = 50,883,021.17/7,540.17
  6. Step 6: Final answer
    x = 6,748.26

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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.