Home / 3,909.35-5,862.51-1,276.19

Finding the Fourth Proportional to 3,909.35, 5,862.51 and 1,276.19

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Solution

The fourth proportional to 3,909.35, 5,862.51 and 1,276.19 is: 1,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.35 : 5,862.51 = 1,276.19 : x
  2. Step 2: Convert to fraction form
    3,909.35/5,862.51 = 1,276.19/x
  3. Step 3: Cross multiply
    3,909.35x = 5,862.51 × 1,276.19
  4. Step 4: Simplify right side
    3,909.35x = 7,481,676.64
  5. Step 5: Solve for x
    x = 7,481,676.64/3,909.35
  6. Step 6: Final answer
    x = 1,913.79

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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.