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Finding the Fourth Proportional to 2,385.75, 3,580.07 and 1,017.75

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Solution

The fourth proportional to 2,385.75, 3,580.07 and 1,017.75 is: 1,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.75 : 3,580.07 = 1,017.75 : x
  2. Step 2: Convert to fraction form
    2,385.75/3,580.07 = 1,017.75/x
  3. Step 3: Cross multiply
    2,385.75x = 3,580.07 × 1,017.75
  4. Step 4: Simplify right side
    2,385.75x = 3,643,616.24
  5. Step 5: Solve for x
    x = 3,643,616.24/2,385.75
  6. Step 6: Final answer
    x = 1,527.24

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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.