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Finding the Fourth Proportional to 4,739.76, 6,542.04 and 2,878.32

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Solution

The fourth proportional to 4,739.76, 6,542.04 and 2,878.32 is: 3,972.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.76 : 6,542.04 = 2,878.32 : x
  2. Step 2: Convert to fraction form
    4,739.76/6,542.04 = 2,878.32/x
  3. Step 3: Cross multiply
    4,739.76x = 6,542.04 × 2,878.32
  4. Step 4: Simplify right side
    4,739.76x = 18,830,084.57
  5. Step 5: Solve for x
    x = 18,830,084.57/4,739.76
  6. Step 6: Final answer
    x = 3,972.79

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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.