Home / 1,629.10-2,247.78-1,039.42

Finding the Fourth Proportional to 1,629.10, 2,247.78 and 1,039.42

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Solution

The fourth proportional to 1,629.10, 2,247.78 and 1,039.42 is: 1,434.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.10 : 2,247.78 = 1,039.42 : x
  2. Step 2: Convert to fraction form
    1,629.10/2,247.78 = 1,039.42/x
  3. Step 3: Cross multiply
    1,629.10x = 2,247.78 × 1,039.42
  4. Step 4: Simplify right side
    1,629.10x = 2,336,387.49
  5. Step 5: Solve for x
    x = 2,336,387.49/1,629.10
  6. Step 6: Final answer
    x = 1,434.16

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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.