Home / 5,153.10-7,109.60-2,914.76

Finding the Fourth Proportional to 5,153.10, 7,109.60 and 2,914.76

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Solution

The fourth proportional to 5,153.10, 7,109.60 and 2,914.76 is: 4,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.10 : 7,109.60 = 2,914.76 : x
  2. Step 2: Convert to fraction form
    5,153.10/7,109.60 = 2,914.76/x
  3. Step 3: Cross multiply
    5,153.10x = 7,109.60 × 2,914.76
  4. Step 4: Simplify right side
    5,153.10x = 20,722,777.70
  5. Step 5: Solve for x
    x = 20,722,777.70/5,153.10
  6. Step 6: Final answer
    x = 4,021.42

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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.