Home / 1,939.06-2,903.05-1,478.71

Finding the Fourth Proportional to 1,939.06, 2,903.05 and 1,478.71

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Solution

The fourth proportional to 1,939.06, 2,903.05 and 1,478.71 is: 2,213.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.06 : 2,903.05 = 1,478.71 : x
  2. Step 2: Convert to fraction form
    1,939.06/2,903.05 = 1,478.71/x
  3. Step 3: Cross multiply
    1,939.06x = 2,903.05 × 1,478.71
  4. Step 4: Simplify right side
    1,939.06x = 4,292,769.07
  5. Step 5: Solve for x
    x = 4,292,769.07/1,939.06
  6. Step 6: Final answer
    x = 2,213.84

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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.