Home / 5,180.42-7,770.74-1,284.83

Finding the Fourth Proportional to 5,180.42, 7,770.74 and 1,284.83

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Solution

The fourth proportional to 5,180.42, 7,770.74 and 1,284.83 is: 1,927.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.42 : 7,770.74 = 1,284.83 : x
  2. Step 2: Convert to fraction form
    5,180.42/7,770.74 = 1,284.83/x
  3. Step 3: Cross multiply
    5,180.42x = 7,770.74 × 1,284.83
  4. Step 4: Simplify right side
    5,180.42x = 9,984,063.74
  5. Step 5: Solve for x
    x = 9,984,063.74/5,180.42
  6. Step 6: Final answer
    x = 1,927.27

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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.