Home / 7,346.28-10,137.87-3,989.19

Finding the Fourth Proportional to 7,346.28, 10,137.87 and 3,989.19

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Solution

The fourth proportional to 7,346.28, 10,137.87 and 3,989.19 is: 5,505.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,346.28 : 10,137.87 = 3,989.19 : x
  2. Step 2: Convert to fraction form
    7,346.28/10,137.87 = 3,989.19/x
  3. Step 3: Cross multiply
    7,346.28x = 10,137.87 × 3,989.19
  4. Step 4: Simplify right side
    7,346.28x = 40,441,889.63
  5. Step 5: Solve for x
    x = 40,441,889.63/7,346.28
  6. Step 6: Final answer
    x = 5,505.08

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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.