Home / 2,986.64-4,480.80-1,039.04

Finding the Fourth Proportional to 2,986.64, 4,480.80 and 1,039.04

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Solution

The fourth proportional to 2,986.64, 4,480.80 and 1,039.04 is: 1,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.64 : 4,480.80 = 1,039.04 : x
  2. Step 2: Convert to fraction form
    2,986.64/4,480.80 = 1,039.04/x
  3. Step 3: Cross multiply
    2,986.64x = 4,480.80 × 1,039.04
  4. Step 4: Simplify right side
    2,986.64x = 4,655,730.43
  5. Step 5: Solve for x
    x = 4,655,730.43/2,986.64
  6. Step 6: Final answer
    x = 1,558.85

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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.