Home / 2,989.23-4,485.05-1,235.67

Finding the Fourth Proportional to 2,989.23, 4,485.05 and 1,235.67

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Solution

The fourth proportional to 2,989.23, 4,485.05 and 1,235.67 is: 1,854.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.23 : 4,485.05 = 1,235.67 : x
  2. Step 2: Convert to fraction form
    2,989.23/4,485.05 = 1,235.67/x
  3. Step 3: Cross multiply
    2,989.23x = 4,485.05 × 1,235.67
  4. Step 4: Simplify right side
    2,989.23x = 5,542,041.73
  5. Step 5: Solve for x
    x = 5,542,041.73/2,989.23
  6. Step 6: Final answer
    x = 1,854.00

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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.