Home / 5,185.94-7,777.56-1,487.18

Finding the Fourth Proportional to 5,185.94, 7,777.56 and 1,487.18

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Solution

The fourth proportional to 5,185.94, 7,777.56 and 1,487.18 is: 2,230.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.94 : 7,777.56 = 1,487.18 : x
  2. Step 2: Convert to fraction form
    5,185.94/7,777.56 = 1,487.18/x
  3. Step 3: Cross multiply
    5,185.94x = 7,777.56 × 1,487.18
  4. Step 4: Simplify right side
    5,185.94x = 11,566,631.68
  5. Step 5: Solve for x
    x = 11,566,631.68/5,185.94
  6. Step 6: Final answer
    x = 2,230.38

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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.