Home / 7,126.48-10,689.68-3,226.32

Finding the Fourth Proportional to 7,126.48, 10,689.68 and 3,226.32

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Solution

The fourth proportional to 7,126.48, 10,689.68 and 3,226.32 is: 4,839.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.48 : 10,689.68 = 3,226.32 : x
  2. Step 2: Convert to fraction form
    7,126.48/10,689.68 = 3,226.32/x
  3. Step 3: Cross multiply
    7,126.48x = 10,689.68 × 3,226.32
  4. Step 4: Simplify right side
    7,126.48x = 34,488,328.38
  5. Step 5: Solve for x
    x = 34,488,328.38/7,126.48
  6. Step 6: Final answer
    x = 4,839.46

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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.