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Finding the Fourth Proportional to 1,841.40, 2,761.51 and 608.58

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Solution

The fourth proportional to 1,841.40, 2,761.51 and 608.58 is: 912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.40 : 2,761.51 = 608.58 : x
  2. Step 2: Convert to fraction form
    1,841.40/2,761.51 = 608.58/x
  3. Step 3: Cross multiply
    1,841.40x = 2,761.51 × 608.58
  4. Step 4: Simplify right side
    1,841.40x = 1,680,599.76
  5. Step 5: Solve for x
    x = 1,680,599.76/1,841.40
  6. Step 6: Final answer
    x = 912.68

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1.5x scale

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.