Home / 2,185.05-3,260.22-2,030.21

Finding the Fourth Proportional to 2,185.05, 3,260.22 and 2,030.21

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Solution

The fourth proportional to 2,185.05, 3,260.22 and 2,030.21 is: 3,029.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.05 : 3,260.22 = 2,030.21 : x
  2. Step 2: Convert to fraction form
    2,185.05/3,260.22 = 2,030.21/x
  3. Step 3: Cross multiply
    2,185.05x = 3,260.22 × 2,030.21
  4. Step 4: Simplify right side
    2,185.05x = 6,618,931.25
  5. Step 5: Solve for x
    x = 6,618,931.25/2,185.05
  6. Step 6: Final answer
    x = 3,029.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.