Home / 2,402.58-3,315.56-1,354.64

Finding the Fourth Proportional to 2,402.58, 3,315.56 and 1,354.64

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Solution

The fourth proportional to 2,402.58, 3,315.56 and 1,354.64 is: 1,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.58 : 3,315.56 = 1,354.64 : x
  2. Step 2: Convert to fraction form
    2,402.58/3,315.56 = 1,354.64/x
  3. Step 3: Cross multiply
    2,402.58x = 3,315.56 × 1,354.64
  4. Step 4: Simplify right side
    2,402.58x = 4,491,366.85
  5. Step 5: Solve for x
    x = 4,491,366.85/2,402.58
  6. Step 6: Final answer
    x = 1,869.39

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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.