Home / 7,770.29-11,655.63-1,926.81

Finding the Fourth Proportional to 7,770.29, 11,655.63 and 1,926.81

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Solution

The fourth proportional to 7,770.29, 11,655.63 and 1,926.81 is: 2,890.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.29 : 11,655.63 = 1,926.81 : x
  2. Step 2: Convert to fraction form
    7,770.29/11,655.63 = 1,926.81/x
  3. Step 3: Cross multiply
    7,770.29x = 11,655.63 × 1,926.81
  4. Step 4: Simplify right side
    7,770.29x = 22,458,184.44
  5. Step 5: Solve for x
    x = 22,458,184.44/7,770.29
  6. Step 6: Final answer
    x = 2,890.27

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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.