Home / 1,914.69-2,866.46-1,423.28

Finding the Fourth Proportional to 1,914.69, 2,866.46 and 1,423.28

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Solution

The fourth proportional to 1,914.69, 2,866.46 and 1,423.28 is: 2,130.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.69 : 2,866.46 = 1,423.28 : x
  2. Step 2: Convert to fraction form
    1,914.69/2,866.46 = 1,423.28/x
  3. Step 3: Cross multiply
    1,914.69x = 2,866.46 × 1,423.28
  4. Step 4: Simplify right side
    1,914.69x = 4,079,775.19
  5. Step 5: Solve for x
    x = 4,079,775.19/1,914.69
  6. Step 6: Final answer
    x = 2,130.78

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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.