Home / 3,520.81-4,858.70-2,028.99

Finding the Fourth Proportional to 3,520.81, 4,858.70 and 2,028.99

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Solution

The fourth proportional to 3,520.81, 4,858.70 and 2,028.99 is: 2,800.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.81 : 4,858.70 = 2,028.99 : x
  2. Step 2: Convert to fraction form
    3,520.81/4,858.70 = 2,028.99/x
  3. Step 3: Cross multiply
    3,520.81x = 4,858.70 × 2,028.99
  4. Step 4: Simplify right side
    3,520.81x = 9,858,253.71
  5. Step 5: Solve for x
    x = 9,858,253.71/3,520.81
  6. Step 6: Final answer
    x = 2,800.00

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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.