Home / 5,101.05-7,651.84-1,403.20

Finding the Fourth Proportional to 5,101.05, 7,651.84 and 1,403.20

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Solution

The fourth proportional to 5,101.05, 7,651.84 and 1,403.20 is: 2,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.05 : 7,651.84 = 1,403.20 : x
  2. Step 2: Convert to fraction form
    5,101.05/7,651.84 = 1,403.20/x
  3. Step 3: Cross multiply
    5,101.05x = 7,651.84 × 1,403.20
  4. Step 4: Simplify right side
    5,101.05x = 10,737,023.63
  5. Step 5: Solve for x
    x = 10,737,023.63/5,101.05
  6. Step 6: Final answer
    x = 2,104.87

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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.