Home / 2,388.81-3,296.55-1,326.74

Finding the Fourth Proportional to 2,388.81, 3,296.55 and 1,326.74

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Solution

The fourth proportional to 2,388.81, 3,296.55 and 1,326.74 is: 1,830.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.81 : 3,296.55 = 1,326.74 : x
  2. Step 2: Convert to fraction form
    2,388.81/3,296.55 = 1,326.74/x
  3. Step 3: Cross multiply
    2,388.81x = 3,296.55 × 1,326.74
  4. Step 4: Simplify right side
    2,388.81x = 4,373,653.24
  5. Step 5: Solve for x
    x = 4,373,653.24/2,388.81
  6. Step 6: Final answer
    x = 1,830.89

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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.