Home / 3,376.06-4,659.37-1,978.81

Finding the Fourth Proportional to 3,376.06, 4,659.37 and 1,978.81

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Solution

The fourth proportional to 3,376.06, 4,659.37 and 1,978.81 is: 2,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.06 : 4,659.37 = 1,978.81 : x
  2. Step 2: Convert to fraction form
    3,376.06/4,659.37 = 1,978.81/x
  3. Step 3: Cross multiply
    3,376.06x = 4,659.37 × 1,978.81
  4. Step 4: Simplify right side
    3,376.06x = 9,220,007.95
  5. Step 5: Solve for x
    x = 9,220,007.95/3,376.06
  6. Step 6: Final answer
    x = 2,731.00

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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.