Home / 3,245.81-4,870.31-2,012.90

Finding the Fourth Proportional to 3,245.81, 4,870.31 and 2,012.90

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Solution

The fourth proportional to 3,245.81, 4,870.31 and 2,012.90 is: 3,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.81 : 4,870.31 = 2,012.90 : x
  2. Step 2: Convert to fraction form
    3,245.81/4,870.31 = 2,012.90/x
  3. Step 3: Cross multiply
    3,245.81x = 4,870.31 × 2,012.90
  4. Step 4: Simplify right side
    3,245.81x = 9,803,412.58
  5. Step 5: Solve for x
    x = 9,803,412.58/3,245.81
  6. Step 6: Final answer
    x = 3,020.33

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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.