Home / 7,085.82-10,628.10-2,156.55

Finding the Fourth Proportional to 7,085.82, 10,628.10 and 2,156.55

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Solution

The fourth proportional to 7,085.82, 10,628.10 and 2,156.55 is: 3,234.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.82 : 10,628.10 = 2,156.55 : x
  2. Step 2: Convert to fraction form
    7,085.82/10,628.10 = 2,156.55/x
  3. Step 3: Cross multiply
    7,085.82x = 10,628.10 × 2,156.55
  4. Step 4: Simplify right side
    7,085.82x = 22,920,029.06
  5. Step 5: Solve for x
    x = 22,920,029.06/7,085.82
  6. Step 6: Final answer
    x = 3,234.63

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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.