Home / 7,072.02-10,603.92-2,689.80

Finding the Fourth Proportional to 7,072.02, 10,603.92 and 2,689.80

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Solution

The fourth proportional to 7,072.02, 10,603.92 and 2,689.80 is: 4,033.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.02 : 10,603.92 = 2,689.80 : x
  2. Step 2: Convert to fraction form
    7,072.02/10,603.92 = 2,689.80/x
  3. Step 3: Cross multiply
    7,072.02x = 10,603.92 × 2,689.80
  4. Step 4: Simplify right side
    7,072.02x = 28,522,424.02
  5. Step 5: Solve for x
    x = 28,522,424.02/7,072.02
  6. Step 6: Final answer
    x = 4,033.14

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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.