Home / 3,946.42-5,445.85-2,454.30

Finding the Fourth Proportional to 3,946.42, 5,445.85 and 2,454.30

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Solution

The fourth proportional to 3,946.42, 5,445.85 and 2,454.30 is: 3,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.42 : 5,445.85 = 2,454.30 : x
  2. Step 2: Convert to fraction form
    3,946.42/5,445.85 = 2,454.30/x
  3. Step 3: Cross multiply
    3,946.42x = 5,445.85 × 2,454.30
  4. Step 4: Simplify right side
    3,946.42x = 13,365,716.29
  5. Step 5: Solve for x
    x = 13,365,716.29/3,946.42
  6. Step 6: Final answer
    x = 3,386.80

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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.