Home / 7,215.80-10,820.82-2,597.72

Finding the Fourth Proportional to 7,215.80, 10,820.82 and 2,597.72

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Solution

The fourth proportional to 7,215.80, 10,820.82 and 2,597.72 is: 3,895.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.80 : 10,820.82 = 2,597.72 : x
  2. Step 2: Convert to fraction form
    7,215.80/10,820.82 = 2,597.72/x
  3. Step 3: Cross multiply
    7,215.80x = 10,820.82 × 2,597.72
  4. Step 4: Simplify right side
    7,215.80x = 28,109,460.53
  5. Step 5: Solve for x
    x = 28,109,460.53/7,215.80
  6. Step 6: Final answer
    x = 3,895.54

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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.