Home / 6,989.28-10,482.72-2,605.56

Finding the Fourth Proportional to 6,989.28, 10,482.72 and 2,605.56

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Solution

The fourth proportional to 6,989.28, 10,482.72 and 2,605.56 is: 3,907.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.28 : 10,482.72 = 2,605.56 : x
  2. Step 2: Convert to fraction form
    6,989.28/10,482.72 = 2,605.56/x
  3. Step 3: Cross multiply
    6,989.28x = 10,482.72 × 2,605.56
  4. Step 4: Simplify right side
    6,989.28x = 27,313,355.92
  5. Step 5: Solve for x
    x = 27,313,355.92/6,989.28
  6. Step 6: Final answer
    x = 3,907.89

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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.