Home / 7,083.45-9,788.65-5,311.98

Finding the Fourth Proportional to 7,083.45, 9,788.65 and 5,311.98

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Solution

The fourth proportional to 7,083.45, 9,788.65 and 5,311.98 is: 7,340.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,083.45 : 9,788.65 = 5,311.98 : x
  2. Step 2: Convert to fraction form
    7,083.45/9,788.65 = 5,311.98/x
  3. Step 3: Cross multiply
    7,083.45x = 9,788.65 × 5,311.98
  4. Step 4: Simplify right side
    7,083.45x = 51,997,099.75
  5. Step 5: Solve for x
    x = 51,997,099.75/7,083.45
  6. Step 6: Final answer
    x = 7,340.65

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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.