Home / 3,905.55-5,394.20-2,848.10

Finding the Fourth Proportional to 3,905.55, 5,394.20 and 2,848.10

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Solution

The fourth proportional to 3,905.55, 5,394.20 and 2,848.10 is: 3,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.55 : 5,394.20 = 2,848.10 : x
  2. Step 2: Convert to fraction form
    3,905.55/5,394.20 = 2,848.10/x
  3. Step 3: Cross multiply
    3,905.55x = 5,394.20 × 2,848.10
  4. Step 4: Simplify right side
    3,905.55x = 15,363,179.81
  5. Step 5: Solve for x
    x = 15,363,179.81/3,905.55
  6. Step 6: Final answer
    x = 3,933.68

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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.