Home / 7,155.28-10,739.84-3,460.12

Finding the Fourth Proportional to 7,155.28, 10,739.84 and 3,460.12

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Solution

The fourth proportional to 7,155.28, 10,739.84 and 3,460.12 is: 5,193.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.28 : 10,739.84 = 3,460.12 : x
  2. Step 2: Convert to fraction form
    7,155.28/10,739.84 = 3,460.12/x
  3. Step 3: Cross multiply
    7,155.28x = 10,739.84 × 3,460.12
  4. Step 4: Simplify right side
    7,155.28x = 37,161,135.18
  5. Step 5: Solve for x
    x = 37,161,135.18/7,155.28
  6. Step 6: Final answer
    x = 5,193.53

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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.