Home / 4,928.12-7,385.94-2,154.02

Finding the Fourth Proportional to 4,928.12, 7,385.94 and 2,154.02

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Solution

The fourth proportional to 4,928.12, 7,385.94 and 2,154.02 is: 3,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.12 : 7,385.94 = 2,154.02 : x
  2. Step 2: Convert to fraction form
    4,928.12/7,385.94 = 2,154.02/x
  3. Step 3: Cross multiply
    4,928.12x = 7,385.94 × 2,154.02
  4. Step 4: Simplify right side
    4,928.12x = 15,909,462.48
  5. Step 5: Solve for x
    x = 15,909,462.48/4,928.12
  6. Step 6: Final answer
    x = 3,228.30

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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.