Home / 5,180.58-7,770.86-1,284.98

Finding the Fourth Proportional to 5,180.58, 7,770.86 and 1,284.98

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Solution

The fourth proportional to 5,180.58, 7,770.86 and 1,284.98 is: 1,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.58 : 7,770.86 = 1,284.98 : x
  2. Step 2: Convert to fraction form
    5,180.58/7,770.86 = 1,284.98/x
  3. Step 3: Cross multiply
    5,180.58x = 7,770.86 × 1,284.98
  4. Step 4: Simplify right side
    5,180.58x = 9,985,412.69
  5. Step 5: Solve for x
    x = 9,985,412.69/5,180.58
  6. Step 6: Final answer
    x = 1,927.47

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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.