Home / 3,144.74-4,339.47-1,728.35

Finding the Fourth Proportional to 3,144.74, 4,339.47 and 1,728.35

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Solution

The fourth proportional to 3,144.74, 4,339.47 and 1,728.35 is: 2,384.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.74 : 4,339.47 = 1,728.35 : x
  2. Step 2: Convert to fraction form
    3,144.74/4,339.47 = 1,728.35/x
  3. Step 3: Cross multiply
    3,144.74x = 4,339.47 × 1,728.35
  4. Step 4: Simplify right side
    3,144.74x = 7,500,101.28
  5. Step 5: Solve for x
    x = 7,500,101.28/3,144.74
  6. Step 6: Final answer
    x = 2,384.97

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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.