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Finding the Fourth Proportional to 2,360.10, 3,540.32 and 716.78

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Solution

The fourth proportional to 2,360.10, 3,540.32 and 716.78 is: 1,075.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,360.10 : 3,540.32 = 716.78 : x
  2. Step 2: Convert to fraction form
    2,360.10/3,540.32 = 716.78/x
  3. Step 3: Cross multiply
    2,360.10x = 3,540.32 × 716.78
  4. Step 4: Simplify right side
    2,360.10x = 2,537,630.57
  5. Step 5: Solve for x
    x = 2,537,630.57/2,360.10
  6. Step 6: Final answer
    x = 1,075.22

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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.