Home / 7,745.59-10,690.82-4,390.39

Finding the Fourth Proportional to 7,745.59, 10,690.82 and 4,390.39

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Solution

The fourth proportional to 7,745.59, 10,690.82 and 4,390.39 is: 6,059.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.59 : 10,690.82 = 4,390.39 : x
  2. Step 2: Convert to fraction form
    7,745.59/10,690.82 = 4,390.39/x
  3. Step 3: Cross multiply
    7,745.59x = 10,690.82 × 4,390.39
  4. Step 4: Simplify right side
    7,745.59x = 46,936,869.22
  5. Step 5: Solve for x
    x = 46,936,869.22/7,745.59
  6. Step 6: Final answer
    x = 6,059.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.