Home / 7,067.79-10,603.40-4,991.85

Finding the Fourth Proportional to 7,067.79, 10,603.40 and 4,991.85

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Solution

The fourth proportional to 7,067.79, 10,603.40 and 4,991.85 is: 7,488.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.79 : 10,603.40 = 4,991.85 : x
  2. Step 2: Convert to fraction form
    7,067.79/10,603.40 = 4,991.85/x
  3. Step 3: Cross multiply
    7,067.79x = 10,603.40 × 4,991.85
  4. Step 4: Simplify right side
    7,067.79x = 52,930,557.33
  5. Step 5: Solve for x
    x = 52,930,557.33/7,067.79
  6. Step 6: Final answer
    x = 7,488.98

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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.