Home / 3,877.24-5,814.50-1,279.48

Finding the Fourth Proportional to 3,877.24, 5,814.50 and 1,279.48

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Solution

The fourth proportional to 3,877.24, 5,814.50 and 1,279.48 is: 1,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.24 : 5,814.50 = 1,279.48 : x
  2. Step 2: Convert to fraction form
    3,877.24/5,814.50 = 1,279.48/x
  3. Step 3: Cross multiply
    3,877.24x = 5,814.50 × 1,279.48
  4. Step 4: Simplify right side
    3,877.24x = 7,439,536.46
  5. Step 5: Solve for x
    x = 7,439,536.46/3,877.24
  6. Step 6: Final answer
    x = 1,918.77

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1.5x scale

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.