Home / 7,790.48-11,685.73-3,110.87

Finding the Fourth Proportional to 7,790.48, 11,685.73 and 3,110.87

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Solution

The fourth proportional to 7,790.48, 11,685.73 and 3,110.87 is: 4,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.48 : 11,685.73 = 3,110.87 : x
  2. Step 2: Convert to fraction form
    7,790.48/11,685.73 = 3,110.87/x
  3. Step 3: Cross multiply
    7,790.48x = 11,685.73 × 3,110.87
  4. Step 4: Simplify right side
    7,790.48x = 36,352,732.35
  5. Step 5: Solve for x
    x = 36,352,732.35/7,790.48
  6. Step 6: Final answer
    x = 4,666.30

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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.