Home / 7,706.42-11,561.08-3,089.78

Finding the Fourth Proportional to 7,706.42, 11,561.08 and 3,089.78

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Solution

The fourth proportional to 7,706.42, 11,561.08 and 3,089.78 is: 4,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,706.42 : 11,561.08 = 3,089.78 : x
  2. Step 2: Convert to fraction form
    7,706.42/11,561.08 = 3,089.78/x
  3. Step 3: Cross multiply
    7,706.42x = 11,561.08 × 3,089.78
  4. Step 4: Simplify right side
    7,706.42x = 35,721,193.76
  5. Step 5: Solve for x
    x = 35,721,193.76/7,706.42
  6. Step 6: Final answer
    x = 4,635.25

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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.