Home / 7,869.18-11,804.40-2,025.78

Finding the Fourth Proportional to 7,869.18, 11,804.40 and 2,025.78

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Solution

The fourth proportional to 7,869.18, 11,804.40 and 2,025.78 is: 3,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.18 : 11,804.40 = 2,025.78 : x
  2. Step 2: Convert to fraction form
    7,869.18/11,804.40 = 2,025.78/x
  3. Step 3: Cross multiply
    7,869.18x = 11,804.40 × 2,025.78
  4. Step 4: Simplify right side
    7,869.18x = 23,913,117.43
  5. Step 5: Solve for x
    x = 23,913,117.43/7,869.18
  6. Step 6: Final answer
    x = 3,038.83

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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.