Home / 2,416.02-3,640.49-1,986.88

Finding the Fourth Proportional to 2,416.02, 3,640.49 and 1,986.88

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Solution

The fourth proportional to 2,416.02, 3,640.49 and 1,986.88 is: 2,993.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,416.02 : 3,640.49 = 1,986.88 : x
  2. Step 2: Convert to fraction form
    2,416.02/3,640.49 = 1,986.88/x
  3. Step 3: Cross multiply
    2,416.02x = 3,640.49 × 1,986.88
  4. Step 4: Simplify right side
    2,416.02x = 7,233,216.66
  5. Step 5: Solve for x
    x = 7,233,216.66/2,416.02
  6. Step 6: Final answer
    x = 2,993.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.