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Finding the Fourth Proportional to 6,689.76, 10,033.84 and 1,759.78

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Solution

The fourth proportional to 6,689.76, 10,033.84 and 1,759.78 is: 2,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.76 : 10,033.84 = 1,759.78 : x
  2. Step 2: Convert to fraction form
    6,689.76/10,033.84 = 1,759.78/x
  3. Step 3: Cross multiply
    6,689.76x = 10,033.84 × 1,759.78
  4. Step 4: Simplify right side
    6,689.76x = 17,657,350.96
  5. Step 5: Solve for x
    x = 17,657,350.96/6,689.76
  6. Step 6: Final answer
    x = 2,639.46

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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.