Home / 5,056-6,976.72-2,817.36

Finding the Fourth Proportional to 5,056, 6,976.72 and 2,817.36

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Solution

The fourth proportional to 5,056, 6,976.72 and 2,817.36 is: 3,887.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,056 : 6,976.72 = 2,817.36 : x
  2. Step 2: Convert to fraction form
    5,056/6,976.72 = 2,817.36/x
  3. Step 3: Cross multiply
    5,056x = 6,976.72 × 2,817.36
  4. Step 4: Simplify right side
    5,056x = 19,655,931.86
  5. Step 5: Solve for x
    x = 19,655,931.86/5,056
  6. Step 6: Final answer
    x = 3,887.64

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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.