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Finding the Fourth Proportional to 7,775.19, 11,665.05 and 2,510.09

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Solution

The fourth proportional to 7,775.19, 11,665.05 and 2,510.09 is: 3,765.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.19 : 11,665.05 = 2,510.09 : x
  2. Step 2: Convert to fraction form
    7,775.19/11,665.05 = 2,510.09/x
  3. Step 3: Cross multiply
    7,775.19x = 11,665.05 × 2,510.09
  4. Step 4: Simplify right side
    7,775.19x = 29,280,325.35
  5. Step 5: Solve for x
    x = 29,280,325.35/7,775.19
  6. Step 6: Final answer
    x = 3,765.87

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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.