Home / 2,421.23-3,631.37-2,012.99

Finding the Fourth Proportional to 2,421.23, 3,631.37 and 2,012.99

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Solution

The fourth proportional to 2,421.23, 3,631.37 and 2,012.99 is: 3,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.23 : 3,631.37 = 2,012.99 : x
  2. Step 2: Convert to fraction form
    2,421.23/3,631.37 = 2,012.99/x
  3. Step 3: Cross multiply
    2,421.23x = 3,631.37 × 2,012.99
  4. Step 4: Simplify right side
    2,421.23x = 7,309,883.27
  5. Step 5: Solve for x
    x = 7,309,883.27/2,421.23
  6. Step 6: Final answer
    x = 3,019.08

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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.