Home / 1,939.89-2,679.22-1,503.07

Finding the Fourth Proportional to 1,939.89, 2,679.22 and 1,503.07

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Solution

The fourth proportional to 1,939.89, 2,679.22 and 1,503.07 is: 2,075.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.89 : 2,679.22 = 1,503.07 : x
  2. Step 2: Convert to fraction form
    1,939.89/2,679.22 = 1,503.07/x
  3. Step 3: Cross multiply
    1,939.89x = 2,679.22 × 1,503.07
  4. Step 4: Simplify right side
    1,939.89x = 4,027,055.21
  5. Step 5: Solve for x
    x = 4,027,055.21/1,939.89
  6. Step 6: Final answer
    x = 2,075.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.