Home / 2,989.26-4,483.98-1,115.64

Finding the Fourth Proportional to 2,989.26, 4,483.98 and 1,115.64

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Solution

The fourth proportional to 2,989.26, 4,483.98 and 1,115.64 is: 1,673.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.26 : 4,483.98 = 1,115.64 : x
  2. Step 2: Convert to fraction form
    2,989.26/4,483.98 = 1,115.64/x
  3. Step 3: Cross multiply
    2,989.26x = 4,483.98 × 1,115.64
  4. Step 4: Simplify right side
    2,989.26x = 5,002,507.45
  5. Step 5: Solve for x
    x = 5,002,507.45/2,989.26
  6. Step 6: Final answer
    x = 1,673.49

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1.5x scale

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.