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Finding the Fourth Proportional to 4,878.95, 6,733.04 and 2,888.78

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Solution

The fourth proportional to 4,878.95, 6,733.04 and 2,888.78 is: 3,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.95 : 6,733.04 = 2,888.78 : x
  2. Step 2: Convert to fraction form
    4,878.95/6,733.04 = 2,888.78/x
  3. Step 3: Cross multiply
    4,878.95x = 6,733.04 × 2,888.78
  4. Step 4: Simplify right side
    4,878.95x = 19,450,223.18
  5. Step 5: Solve for x
    x = 19,450,223.18/4,878.95
  6. Step 6: Final answer
    x = 3,986.56

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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.