Home / 5,865.49-8,785.99-3,518.05

Finding the Fourth Proportional to 5,865.49, 8,785.99 and 3,518.05

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Solution

The fourth proportional to 5,865.49, 8,785.99 and 3,518.05 is: 5,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,865.49 : 8,785.99 = 3,518.05 : x
  2. Step 2: Convert to fraction form
    5,865.49/8,785.99 = 3,518.05/x
  3. Step 3: Cross multiply
    5,865.49x = 8,785.99 × 3,518.05
  4. Step 4: Simplify right side
    5,865.49x = 30,909,552.12
  5. Step 5: Solve for x
    x = 30,909,552.12/5,865.49
  6. Step 6: Final answer
    x = 5,269.73

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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.