Home / 7,134.81-10,702.82-1,869.79

Finding the Fourth Proportional to 7,134.81, 10,702.82 and 1,869.79

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Solution

The fourth proportional to 7,134.81, 10,702.82 and 1,869.79 is: 2,804.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.81 : 10,702.82 = 1,869.79 : x
  2. Step 2: Convert to fraction form
    7,134.81/10,702.82 = 1,869.79/x
  3. Step 3: Cross multiply
    7,134.81x = 10,702.82 × 1,869.79
  4. Step 4: Simplify right side
    7,134.81x = 20,012,025.81
  5. Step 5: Solve for x
    x = 20,012,025.81/7,134.81
  6. Step 6: Final answer
    x = 2,804.84

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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.