Home / 2,998.30-4,495.50-1,438.27

Finding the Fourth Proportional to 2,998.30, 4,495.50 and 1,438.27

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Solution

The fourth proportional to 2,998.30, 4,495.50 and 1,438.27 is: 2,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.30 : 4,495.50 = 1,438.27 : x
  2. Step 2: Convert to fraction form
    2,998.30/4,495.50 = 1,438.27/x
  3. Step 3: Cross multiply
    2,998.30x = 4,495.50 × 1,438.27
  4. Step 4: Simplify right side
    2,998.30x = 6,465,742.79
  5. Step 5: Solve for x
    x = 6,465,742.79/2,998.30
  6. Step 6: Final answer
    x = 2,156.47

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1.5x scale

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.