Home / 5,155.24-7,113.87-2,917.06

Finding the Fourth Proportional to 5,155.24, 7,113.87 and 2,917.06

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Solution

The fourth proportional to 5,155.24, 7,113.87 and 2,917.06 is: 4,025.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.24 : 7,113.87 = 2,917.06 : x
  2. Step 2: Convert to fraction form
    5,155.24/7,113.87 = 2,917.06/x
  3. Step 3: Cross multiply
    5,155.24x = 7,113.87 × 2,917.06
  4. Step 4: Simplify right side
    5,155.24x = 20,751,567.84
  5. Step 5: Solve for x
    x = 20,751,567.84/5,155.24
  6. Step 6: Final answer
    x = 4,025.34

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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.