Home / 3,909.64-5,862.58-1,310.76

Finding the Fourth Proportional to 3,909.64, 5,862.58 and 1,310.76

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Solution

The fourth proportional to 3,909.64, 5,862.58 and 1,310.76 is: 1,965.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.64 : 5,862.58 = 1,310.76 : x
  2. Step 2: Convert to fraction form
    3,909.64/5,862.58 = 1,310.76/x
  3. Step 3: Cross multiply
    3,909.64x = 5,862.58 × 1,310.76
  4. Step 4: Simplify right side
    3,909.64x = 7,684,435.36
  5. Step 5: Solve for x
    x = 7,684,435.36/3,909.64
  6. Step 6: Final answer
    x = 1,965.51

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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.