Home / 5,012.16-6,917.52-2,887.28

Finding the Fourth Proportional to 5,012.16, 6,917.52 and 2,887.28

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Solution

The fourth proportional to 5,012.16, 6,917.52 and 2,887.28 is: 3,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.16 : 6,917.52 = 2,887.28 : x
  2. Step 2: Convert to fraction form
    5,012.16/6,917.52 = 2,887.28/x
  3. Step 3: Cross multiply
    5,012.16x = 6,917.52 × 2,887.28
  4. Step 4: Simplify right side
    5,012.16x = 19,972,809.93
  5. Step 5: Solve for x
    x = 19,972,809.93/5,012.16
  6. Step 6: Final answer
    x = 3,984.87

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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.