Home / 2,947.30-4,067.18-1,621.00

Finding the Fourth Proportional to 2,947.30, 4,067.18 and 1,621.00

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Solution

The fourth proportional to 2,947.30, 4,067.18 and 1,621.00 is: 2,236.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.30 : 4,067.18 = 1,621.00 : x
  2. Step 2: Convert to fraction form
    2,947.30/4,067.18 = 1,621.00/x
  3. Step 3: Cross multiply
    2,947.30x = 4,067.18 × 1,621.00
  4. Step 4: Simplify right side
    2,947.30x = 6,592,883.52
  5. Step 5: Solve for x
    x = 6,592,883.52/2,947.30
  6. Step 6: Final answer
    x = 2,236.92

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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.