Home / 2,986.40-4,480.08-1,137.44

Finding the Fourth Proportional to 2,986.40, 4,480.08 and 1,137.44

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Solution

The fourth proportional to 2,986.40, 4,480.08 and 1,137.44 is: 1,706.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.40 : 4,480.08 = 1,137.44 : x
  2. Step 2: Convert to fraction form
    2,986.40/4,480.08 = 1,137.44/x
  3. Step 3: Cross multiply
    2,986.40x = 4,480.08 × 1,137.44
  4. Step 4: Simplify right side
    2,986.40x = 5,095,822.20
  5. Step 5: Solve for x
    x = 5,095,822.20/2,986.40
  6. Step 6: Final answer
    x = 1,706.34

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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.