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Finding the Fourth Proportional to 1,176.96, 1,625.40 and 846.12

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Solution

The fourth proportional to 1,176.96, 1,625.40 and 846.12 is: 1,168.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.96 : 1,625.40 = 846.12 : x
  2. Step 2: Convert to fraction form
    1,176.96/1,625.40 = 846.12/x
  3. Step 3: Cross multiply
    1,176.96x = 1,625.40 × 846.12
  4. Step 4: Simplify right side
    1,176.96x = 1,375,283.45
  5. Step 5: Solve for x
    x = 1,375,283.45/1,176.96
  6. Step 6: Final answer
    x = 1,168.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.