Home / 2,917.51-3,974.87-2,853.25

Finding the Fourth Proportional to 2,917.51, 3,974.87 and 2,853.25

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Solution

The fourth proportional to 2,917.51, 3,974.87 and 2,853.25 is: 3,887.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.51 : 3,974.87 = 2,853.25 : x
  2. Step 2: Convert to fraction form
    2,917.51/3,974.87 = 2,853.25/x
  3. Step 3: Cross multiply
    2,917.51x = 3,974.87 × 2,853.25
  4. Step 4: Simplify right side
    2,917.51x = 11,341,295.02
  5. Step 5: Solve for x
    x = 11,341,295.02/2,917.51
  6. Step 6: Final answer
    x = 3,887.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.