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Finding the Fourth Proportional to 841.08, 1,160.48 and 546.32

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Solution

The fourth proportional to 841.08, 1,160.48 and 546.32 is: 753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.08 : 1,160.48 = 546.32 : x
  2. Step 2: Convert to fraction form
    841.08/1,160.48 = 546.32/x
  3. Step 3: Cross multiply
    841.08x = 1,160.48 × 546.32
  4. Step 4: Simplify right side
    841.08x = 633,993.43
  5. Step 5: Solve for x
    x = 633,993.43/841.08
  6. Step 6: Final answer
    x = 753.78

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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.