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Finding the Fourth Proportional to 3,068.70, 4,607.85 and 1,772.70

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Solution

The fourth proportional to 3,068.70, 4,607.85 and 1,772.70 is: 2,661.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.70 : 4,607.85 = 1,772.70 : x
  2. Step 2: Convert to fraction form
    3,068.70/4,607.85 = 1,772.70/x
  3. Step 3: Cross multiply
    3,068.70x = 4,607.85 × 1,772.70
  4. Step 4: Simplify right side
    3,068.70x = 8,168,335.70
  5. Step 5: Solve for x
    x = 8,168,335.70/3,068.70
  6. Step 6: Final answer
    x = 2,661.82

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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.