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Finding the Fourth Proportional to 1,541.37, 2,310.13 and 847.61

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Solution

The fourth proportional to 1,541.37, 2,310.13 and 847.61 is: 1,270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.37 : 2,310.13 = 847.61 : x
  2. Step 2: Convert to fraction form
    1,541.37/2,310.13 = 847.61/x
  3. Step 3: Cross multiply
    1,541.37x = 2,310.13 × 847.61
  4. Step 4: Simplify right side
    1,541.37x = 1,958,075.62
  5. Step 5: Solve for x
    x = 1,958,075.62/1,541.37
  6. Step 6: Final answer
    x = 1,270.35

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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.