Home / 4,921.40-7,385.13-2,845.50

Finding the Fourth Proportional to 4,921.40, 7,385.13 and 2,845.50

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Solution

The fourth proportional to 4,921.40, 7,385.13 and 2,845.50 is: 4,270.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.40 : 7,385.13 = 2,845.50 : x
  2. Step 2: Convert to fraction form
    4,921.40/7,385.13 = 2,845.50/x
  3. Step 3: Cross multiply
    4,921.40x = 7,385.13 × 2,845.50
  4. Step 4: Simplify right side
    4,921.40x = 21,014,387.42
  5. Step 5: Solve for x
    x = 21,014,387.42/4,921.40
  6. Step 6: Final answer
    x = 4,270.01

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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.