Home / 2,385.21-3,564.03-1,893.15

Finding the Fourth Proportional to 2,385.21, 3,564.03 and 1,893.15

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Solution

The fourth proportional to 2,385.21, 3,564.03 and 1,893.15 is: 2,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.21 : 3,564.03 = 1,893.15 : x
  2. Step 2: Convert to fraction form
    2,385.21/3,564.03 = 1,893.15/x
  3. Step 3: Cross multiply
    2,385.21x = 3,564.03 × 1,893.15
  4. Step 4: Simplify right side
    2,385.21x = 6,747,243.39
  5. Step 5: Solve for x
    x = 6,747,243.39/2,385.21
  6. Step 6: Final answer
    x = 2,828.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.