Home / 1,793.12-2,690.16-1,621.76

Finding the Fourth Proportional to 1,793.12, 2,690.16 and 1,621.76

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Solution

The fourth proportional to 1,793.12, 2,690.16 and 1,621.76 is: 2,433.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,793.12 : 2,690.16 = 1,621.76 : x
  2. Step 2: Convert to fraction form
    1,793.12/2,690.16 = 1,621.76/x
  3. Step 3: Cross multiply
    1,793.12x = 2,690.16 × 1,621.76
  4. Step 4: Simplify right side
    1,793.12x = 4,362,793.88
  5. Step 5: Solve for x
    x = 4,362,793.88/1,793.12
  6. Step 6: Final answer
    x = 2,433.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.