Home / 5,153.36-7,109.94-2,915

Finding the Fourth Proportional to 5,153.36, 7,109.94 and 2,915

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Solution

The fourth proportional to 5,153.36, 7,109.94 and 2,915 is: 4,021.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.36 : 7,109.94 = 2,915 : x
  2. Step 2: Convert to fraction form
    5,153.36/7,109.94 = 2,915/x
  3. Step 3: Cross multiply
    5,153.36x = 7,109.94 × 2,915
  4. Step 4: Simplify right side
    5,153.36x = 20,725,475.10
  5. Step 5: Solve for x
    x = 20,725,475.10/5,153.36
  6. Step 6: Final answer
    x = 4,021.74

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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.