Home / 3,946.40-5,919.28-1,349.24

Finding the Fourth Proportional to 3,946.40, 5,919.28 and 1,349.24

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Solution

The fourth proportional to 3,946.40, 5,919.28 and 1,349.24 is: 2,023.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.40 : 5,919.28 = 1,349.24 : x
  2. Step 2: Convert to fraction form
    3,946.40/5,919.28 = 1,349.24/x
  3. Step 3: Cross multiply
    3,946.40x = 5,919.28 × 1,349.24
  4. Step 4: Simplify right side
    3,946.40x = 7,986,529.35
  5. Step 5: Solve for x
    x = 7,986,529.35/3,946.40
  6. Step 6: Final answer
    x = 2,023.75

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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.