Home / 3,509.11-5,270.95-2,783.76

Finding the Fourth Proportional to 3,509.11, 5,270.95 and 2,783.76

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Solution

The fourth proportional to 3,509.11, 5,270.95 and 2,783.76 is: 4,181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.11 : 5,270.95 = 2,783.76 : x
  2. Step 2: Convert to fraction form
    3,509.11/5,270.95 = 2,783.76/x
  3. Step 3: Cross multiply
    3,509.11x = 5,270.95 × 2,783.76
  4. Step 4: Simplify right side
    3,509.11x = 14,673,059.77
  5. Step 5: Solve for x
    x = 14,673,059.77/3,509.11
  6. Step 6: Final answer
    x = 4,181.42

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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.