Home / 3,946.08-5,445.56-2,153.68

Finding the Fourth Proportional to 3,946.08, 5,445.56 and 2,153.68

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Solution

The fourth proportional to 3,946.08, 5,445.56 and 2,153.68 is: 2,972.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.08 : 5,445.56 = 2,153.68 : x
  2. Step 2: Convert to fraction form
    3,946.08/5,445.56 = 2,153.68/x
  3. Step 3: Cross multiply
    3,946.08x = 5,445.56 × 2,153.68
  4. Step 4: Simplify right side
    3,946.08x = 11,727,993.66
  5. Step 5: Solve for x
    x = 11,727,993.66/3,946.08
  6. Step 6: Final answer
    x = 2,972.06

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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.