Home / 7,707.35-11,560.80-2,160.57

Finding the Fourth Proportional to 7,707.35, 11,560.80 and 2,160.57

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Solution

The fourth proportional to 7,707.35, 11,560.80 and 2,160.57 is: 3,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.35 : 11,560.80 = 2,160.57 : x
  2. Step 2: Convert to fraction form
    7,707.35/11,560.80 = 2,160.57/x
  3. Step 3: Cross multiply
    7,707.35x = 11,560.80 × 2,160.57
  4. Step 4: Simplify right side
    7,707.35x = 24,977,963.03
  5. Step 5: Solve for x
    x = 24,977,963.03/7,707.35
  6. Step 6: Final answer
    x = 3,240.80

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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.