Home / 2,354.88-3,248.78-1,515.44

Finding the Fourth Proportional to 2,354.88, 3,248.78 and 1,515.44

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Solution

The fourth proportional to 2,354.88, 3,248.78 and 1,515.44 is: 2,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.88 : 3,248.78 = 1,515.44 : x
  2. Step 2: Convert to fraction form
    2,354.88/3,248.78 = 1,515.44/x
  3. Step 3: Cross multiply
    2,354.88x = 3,248.78 × 1,515.44
  4. Step 4: Simplify right side
    2,354.88x = 4,923,331.16
  5. Step 5: Solve for x
    x = 4,923,331.16/2,354.88
  6. Step 6: Final answer
    x = 2,090.69

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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.