Home / 4,887.80-6,744.75-2,871

Finding the Fourth Proportional to 4,887.80, 6,744.75 and 2,871

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Solution

The fourth proportional to 4,887.80, 6,744.75 and 2,871 is: 3,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.80 : 6,744.75 = 2,871 : x
  2. Step 2: Convert to fraction form
    4,887.80/6,744.75 = 2,871/x
  3. Step 3: Cross multiply
    4,887.80x = 6,744.75 × 2,871
  4. Step 4: Simplify right side
    4,887.80x = 19,364,177.25
  5. Step 5: Solve for x
    x = 19,364,177.25/4,887.80
  6. Step 6: Final answer
    x = 3,961.74

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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.