Home / 3,072.05-4,239.40-1,877.03

Finding the Fourth Proportional to 3,072.05, 4,239.40 and 1,877.03

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Solution

The fourth proportional to 3,072.05, 4,239.40 and 1,877.03 is: 2,590.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.05 : 4,239.40 = 1,877.03 : x
  2. Step 2: Convert to fraction form
    3,072.05/4,239.40 = 1,877.03/x
  3. Step 3: Cross multiply
    3,072.05x = 4,239.40 × 1,877.03
  4. Step 4: Simplify right side
    3,072.05x = 7,957,480.98
  5. Step 5: Solve for x
    x = 7,957,480.98/3,072.05
  6. Step 6: Final answer
    x = 2,590.28

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1.5x scale

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.