Home / 3,304.61-4,558.79-1,978.06

Finding the Fourth Proportional to 3,304.61, 4,558.79 and 1,978.06

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Solution

The fourth proportional to 3,304.61, 4,558.79 and 1,978.06 is: 2,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,304.61 : 4,558.79 = 1,978.06 : x
  2. Step 2: Convert to fraction form
    3,304.61/4,558.79 = 1,978.06/x
  3. Step 3: Cross multiply
    3,304.61x = 4,558.79 × 1,978.06
  4. Step 4: Simplify right side
    3,304.61x = 9,017,534.02
  5. Step 5: Solve for x
    x = 9,017,534.02/3,304.61
  6. Step 6: Final answer
    x = 2,728.78

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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.