Home / 7,346.65-10,138.34-3,989.44

Finding the Fourth Proportional to 7,346.65, 10,138.34 and 3,989.44

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Solution

The fourth proportional to 7,346.65, 10,138.34 and 3,989.44 is: 5,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,346.65 : 10,138.34 = 3,989.44 : x
  2. Step 2: Convert to fraction form
    7,346.65/10,138.34 = 3,989.44/x
  3. Step 3: Cross multiply
    7,346.65x = 10,138.34 × 3,989.44
  4. Step 4: Simplify right side
    7,346.65x = 40,446,299.13
  5. Step 5: Solve for x
    x = 40,446,299.13/7,346.65
  6. Step 6: Final answer
    x = 5,505.41

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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.