Home / 2,402.62-3,315.64-1,354.68

Finding the Fourth Proportional to 2,402.62, 3,315.64 and 1,354.68

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Solution

The fourth proportional to 2,402.62, 3,315.64 and 1,354.68 is: 1,869.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.62 : 3,315.64 = 1,354.68 : x
  2. Step 2: Convert to fraction form
    2,402.62/3,315.64 = 1,354.68/x
  3. Step 3: Cross multiply
    2,402.62x = 3,315.64 × 1,354.68
  4. Step 4: Simplify right side
    2,402.62x = 4,491,631.20
  5. Step 5: Solve for x
    x = 4,491,631.20/2,402.62
  6. Step 6: Final answer
    x = 1,869.47

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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.