Home / 3,946.64-5,919.68-1,349.60

Finding the Fourth Proportional to 3,946.64, 5,919.68 and 1,349.60

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Solution

The fourth proportional to 3,946.64, 5,919.68 and 1,349.60 is: 2,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.64 : 5,919.68 = 1,349.60 : x
  2. Step 2: Convert to fraction form
    3,946.64/5,919.68 = 1,349.60/x
  3. Step 3: Cross multiply
    3,946.64x = 5,919.68 × 1,349.60
  4. Step 4: Simplify right side
    3,946.64x = 7,989,200.13
  5. Step 5: Solve for x
    x = 7,989,200.13/3,946.64
  6. Step 6: Final answer
    x = 2,024.30

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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.