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Finding the Fourth Proportional to 841.10, 1,160.71 and 468.09

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Solution

The fourth proportional to 841.10, 1,160.71 and 468.09 is: 645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.10 : 1,160.71 = 468.09 : x
  2. Step 2: Convert to fraction form
    841.10/1,160.71 = 468.09/x
  3. Step 3: Cross multiply
    841.10x = 1,160.71 × 468.09
  4. Step 4: Simplify right side
    841.10x = 543,315.57
  5. Step 5: Solve for x
    x = 543,315.57/841.10
  6. Step 6: Final answer
    x = 645.96

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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.