Home / 4,072.20-5,618.62-2,303.76

Finding the Fourth Proportional to 4,072.20, 5,618.62 and 2,303.76

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Solution

The fourth proportional to 4,072.20, 5,618.62 and 2,303.76 is: 3,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.20 : 5,618.62 = 2,303.76 : x
  2. Step 2: Convert to fraction form
    4,072.20/5,618.62 = 2,303.76/x
  3. Step 3: Cross multiply
    4,072.20x = 5,618.62 × 2,303.76
  4. Step 4: Simplify right side
    4,072.20x = 12,943,952.01
  5. Step 5: Solve for x
    x = 12,943,952.01/4,072.20
  6. Step 6: Final answer
    x = 3,178.61

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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.