Home / 4,180.81-5,764.53-2,688.79

Finding the Fourth Proportional to 4,180.81, 5,764.53 and 2,688.79

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Solution

The fourth proportional to 4,180.81, 5,764.53 and 2,688.79 is: 3,707.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,180.81 : 5,764.53 = 2,688.79 : x
  2. Step 2: Convert to fraction form
    4,180.81/5,764.53 = 2,688.79/x
  3. Step 3: Cross multiply
    4,180.81x = 5,764.53 × 2,688.79
  4. Step 4: Simplify right side
    4,180.81x = 15,499,610.62
  5. Step 5: Solve for x
    x = 15,499,610.62/4,180.81
  6. Step 6: Final answer
    x = 3,707.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.