Home / 7,146.61-10,720.96-2,216.65

Finding the Fourth Proportional to 7,146.61, 10,720.96 and 2,216.65

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Solution

The fourth proportional to 7,146.61, 10,720.96 and 2,216.65 is: 3,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.61 : 10,720.96 = 2,216.65 : x
  2. Step 2: Convert to fraction form
    7,146.61/10,720.96 = 2,216.65/x
  3. Step 3: Cross multiply
    7,146.61x = 10,720.96 × 2,216.65
  4. Step 4: Simplify right side
    7,146.61x = 23,764,603.74
  5. Step 5: Solve for x
    x = 23,764,603.74/7,146.61
  6. Step 6: Final answer
    x = 3,325.30

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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.