Home / 3,709.45-5,118.99-2,030.85

Finding the Fourth Proportional to 3,709.45, 5,118.99 and 2,030.85

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Solution

The fourth proportional to 3,709.45, 5,118.99 and 2,030.85 is: 2,802.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.45 : 5,118.99 = 2,030.85 : x
  2. Step 2: Convert to fraction form
    3,709.45/5,118.99 = 2,030.85/x
  3. Step 3: Cross multiply
    3,709.45x = 5,118.99 × 2,030.85
  4. Step 4: Simplify right side
    3,709.45x = 10,395,900.84
  5. Step 5: Solve for x
    x = 10,395,900.84/3,709.45
  6. Step 6: Final answer
    x = 2,802.55

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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.