Home / 2,974.50-4,104.90-1,648.08

Finding the Fourth Proportional to 2,974.50, 4,104.90 and 1,648.08

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Solution

The fourth proportional to 2,974.50, 4,104.90 and 1,648.08 is: 2,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.50 : 4,104.90 = 1,648.08 : x
  2. Step 2: Convert to fraction form
    2,974.50/4,104.90 = 1,648.08/x
  3. Step 3: Cross multiply
    2,974.50x = 4,104.90 × 1,648.08
  4. Step 4: Simplify right side
    2,974.50x = 6,765,203.59
  5. Step 5: Solve for x
    x = 6,765,203.59/2,974.50
  6. Step 6: Final answer
    x = 2,274.40

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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.