Home / 7,146.90-10,721.38-2,216.93

Finding the Fourth Proportional to 7,146.90, 10,721.38 and 2,216.93

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Solution

The fourth proportional to 7,146.90, 10,721.38 and 2,216.93 is: 3,325.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.90 : 10,721.38 = 2,216.93 : x
  2. Step 2: Convert to fraction form
    7,146.90/10,721.38 = 2,216.93/x
  3. Step 3: Cross multiply
    7,146.90x = 10,721.38 × 2,216.93
  4. Step 4: Simplify right side
    7,146.90x = 23,768,578.54
  5. Step 5: Solve for x
    x = 23,768,578.54/7,146.90
  6. Step 6: Final answer
    x = 3,325.72

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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.