Home / 3,274.24-4,911.30-1,326.40

Finding the Fourth Proportional to 3,274.24, 4,911.30 and 1,326.40

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Solution

The fourth proportional to 3,274.24, 4,911.30 and 1,326.40 is: 1,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.24 : 4,911.30 = 1,326.40 : x
  2. Step 2: Convert to fraction form
    3,274.24/4,911.30 = 1,326.40/x
  3. Step 3: Cross multiply
    3,274.24x = 4,911.30 × 1,326.40
  4. Step 4: Simplify right side
    3,274.24x = 6,514,348.32
  5. Step 5: Solve for x
    x = 6,514,348.32/3,274.24
  6. Step 6: Final answer
    x = 1,989.58

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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.