Home / 3,154.18-4,725.79-2,099.40

Finding the Fourth Proportional to 3,154.18, 4,725.79 and 2,099.40

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Solution

The fourth proportional to 3,154.18, 4,725.79 and 2,099.40 is: 3,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.18 : 4,725.79 = 2,099.40 : x
  2. Step 2: Convert to fraction form
    3,154.18/4,725.79 = 2,099.40/x
  3. Step 3: Cross multiply
    3,154.18x = 4,725.79 × 2,099.40
  4. Step 4: Simplify right side
    3,154.18x = 9,921,323.53
  5. Step 5: Solve for x
    x = 9,921,323.53/3,154.18
  6. Step 6: Final answer
    x = 3,145.45

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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.