Home / 2,385.66-3,579.35-1,069.30

Finding the Fourth Proportional to 2,385.66, 3,579.35 and 1,069.30

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Solution

The fourth proportional to 2,385.66, 3,579.35 and 1,069.30 is: 1,604.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.66 : 3,579.35 = 1,069.30 : x
  2. Step 2: Convert to fraction form
    2,385.66/3,579.35 = 1,069.30/x
  3. Step 3: Cross multiply
    2,385.66x = 3,579.35 × 1,069.30
  4. Step 4: Simplify right side
    2,385.66x = 3,827,398.96
  5. Step 5: Solve for x
    x = 3,827,398.96/2,385.66
  6. Step 6: Final answer
    x = 1,604.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.