Home / 3,520.62-4,858.54-1,948.70

Finding the Fourth Proportional to 3,520.62, 4,858.54 and 1,948.70

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Solution

The fourth proportional to 3,520.62, 4,858.54 and 1,948.70 is: 2,689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.62 : 4,858.54 = 1,948.70 : x
  2. Step 2: Convert to fraction form
    3,520.62/4,858.54 = 1,948.70/x
  3. Step 3: Cross multiply
    3,520.62x = 4,858.54 × 1,948.70
  4. Step 4: Simplify right side
    3,520.62x = 9,467,836.90
  5. Step 5: Solve for x
    x = 9,467,836.90/3,520.62
  6. Step 6: Final answer
    x = 2,689.25

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1.5x scale

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.