Home / 3,518.68-5,281.18-1,876.60

Finding the Fourth Proportional to 3,518.68, 5,281.18 and 1,876.60

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Solution

The fourth proportional to 3,518.68, 5,281.18 and 1,876.60 is: 2,816.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.68 : 5,281.18 = 1,876.60 : x
  2. Step 2: Convert to fraction form
    3,518.68/5,281.18 = 1,876.60/x
  3. Step 3: Cross multiply
    3,518.68x = 5,281.18 × 1,876.60
  4. Step 4: Simplify right side
    3,518.68x = 9,910,662.39
  5. Step 5: Solve for x
    x = 9,910,662.39/3,518.68
  6. Step 6: Final answer
    x = 2,816.59

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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.