Home / 5,101.40-7,651.65-1,403.30

Finding the Fourth Proportional to 5,101.40, 7,651.65 and 1,403.30

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Solution

The fourth proportional to 5,101.40, 7,651.65 and 1,403.30 is: 2,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.40 : 7,651.65 = 1,403.30 : x
  2. Step 2: Convert to fraction form
    5,101.40/7,651.65 = 1,403.30/x
  3. Step 3: Cross multiply
    5,101.40x = 7,651.65 × 1,403.30
  4. Step 4: Simplify right side
    5,101.40x = 10,737,560.45
  5. Step 5: Solve for x
    x = 10,737,560.45/5,101.40
  6. Step 6: Final answer
    x = 2,104.83

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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.