Home / 1,284.04-1,913.70-1,273.31

Finding the Fourth Proportional to 1,284.04, 1,913.70 and 1,273.31

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Solution

The fourth proportional to 1,284.04, 1,913.70 and 1,273.31 is: 1,897.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284.04 : 1,913.70 = 1,273.31 : x
  2. Step 2: Convert to fraction form
    1,284.04/1,913.70 = 1,273.31/x
  3. Step 3: Cross multiply
    1,284.04x = 1,913.70 × 1,273.31
  4. Step 4: Simplify right side
    1,284.04x = 2,436,733.35
  5. Step 5: Solve for x
    x = 2,436,733.35/1,284.04
  6. Step 6: Final answer
    x = 1,897.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.