Home / 2,390.58-3,299.04-1,396.08

Finding the Fourth Proportional to 2,390.58, 3,299.04 and 1,396.08

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Solution

The fourth proportional to 2,390.58, 3,299.04 and 1,396.08 is: 1,926.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.58 : 3,299.04 = 1,396.08 : x
  2. Step 2: Convert to fraction form
    2,390.58/3,299.04 = 1,396.08/x
  3. Step 3: Cross multiply
    2,390.58x = 3,299.04 × 1,396.08
  4. Step 4: Simplify right side
    2,390.58x = 4,605,723.76
  5. Step 5: Solve for x
    x = 4,605,723.76/2,390.58
  6. Step 6: Final answer
    x = 1,926.61

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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.