Home / 2,690.41-4,036-1,302.61

Finding the Fourth Proportional to 2,690.41, 4,036 and 1,302.61

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Solution

The fourth proportional to 2,690.41, 4,036 and 1,302.61 is: 1,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.41 : 4,036 = 1,302.61 : x
  2. Step 2: Convert to fraction form
    2,690.41/4,036 = 1,302.61/x
  3. Step 3: Cross multiply
    2,690.41x = 4,036 × 1,302.61
  4. Step 4: Simplify right side
    2,690.41x = 5,257,313.78
  5. Step 5: Solve for x
    x = 5,257,313.78/2,690.41
  6. Step 6: Final answer
    x = 1,954.09

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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.