Home / 4,878.15-6,732.75-2,888.79

Finding the Fourth Proportional to 4,878.15, 6,732.75 and 2,888.79

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Solution

The fourth proportional to 4,878.15, 6,732.75 and 2,888.79 is: 3,987.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.15 : 6,732.75 = 2,888.79 : x
  2. Step 2: Convert to fraction form
    4,878.15/6,732.75 = 2,888.79/x
  3. Step 3: Cross multiply
    4,878.15x = 6,732.75 × 2,888.79
  4. Step 4: Simplify right side
    4,878.15x = 19,449,500.87
  5. Step 5: Solve for x
    x = 19,449,500.87/4,878.15
  6. Step 6: Final answer
    x = 3,987.06

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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.