Home / 3,873.84-5,346.40-2,458.20

Finding the Fourth Proportional to 3,873.84, 5,346.40 and 2,458.20

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Solution

The fourth proportional to 3,873.84, 5,346.40 and 2,458.20 is: 3,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.84 : 5,346.40 = 2,458.20 : x
  2. Step 2: Convert to fraction form
    3,873.84/5,346.40 = 2,458.20/x
  3. Step 3: Cross multiply
    3,873.84x = 5,346.40 × 2,458.20
  4. Step 4: Simplify right side
    3,873.84x = 13,142,520.48
  5. Step 5: Solve for x
    x = 13,142,520.48/3,873.84
  6. Step 6: Final answer
    x = 3,392.63

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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.