Home / 7,087.90-10,631.86-3,389.26

Finding the Fourth Proportional to 7,087.90, 10,631.86 and 3,389.26

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Solution

The fourth proportional to 7,087.90, 10,631.86 and 3,389.26 is: 5,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.90 : 10,631.86 = 3,389.26 : x
  2. Step 2: Convert to fraction form
    7,087.90/10,631.86 = 3,389.26/x
  3. Step 3: Cross multiply
    7,087.90x = 10,631.86 × 3,389.26
  4. Step 4: Simplify right side
    7,087.90x = 36,034,137.82
  5. Step 5: Solve for x
    x = 36,034,137.82/7,087.90
  6. Step 6: Final answer
    x = 5,083.89

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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.