Home / 5,155.67-7,112.84-2,917.04

Finding the Fourth Proportional to 5,155.67, 7,112.84 and 2,917.04

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Solution

The fourth proportional to 5,155.67, 7,112.84 and 2,917.04 is: 4,024.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.67 : 7,112.84 = 2,917.04 : x
  2. Step 2: Convert to fraction form
    5,155.67/7,112.84 = 2,917.04/x
  3. Step 3: Cross multiply
    5,155.67x = 7,112.84 × 2,917.04
  4. Step 4: Simplify right side
    5,155.67x = 20,748,388.64
  5. Step 5: Solve for x
    x = 20,748,388.64/5,155.67
  6. Step 6: Final answer
    x = 4,024.38

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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.