Home / 3,618.02-4,991.28-2,777.24

Finding the Fourth Proportional to 3,618.02, 4,991.28 and 2,777.24

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Solution

The fourth proportional to 3,618.02, 4,991.28 and 2,777.24 is: 3,831.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.02 : 4,991.28 = 2,777.24 : x
  2. Step 2: Convert to fraction form
    3,618.02/4,991.28 = 2,777.24/x
  3. Step 3: Cross multiply
    3,618.02x = 4,991.28 × 2,777.24
  4. Step 4: Simplify right side
    3,618.02x = 13,861,982.47
  5. Step 5: Solve for x
    x = 13,861,982.47/3,618.02
  6. Step 6: Final answer
    x = 3,831.37

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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.