Home / 3,918.96-5,877.36-2,814.12

Finding the Fourth Proportional to 3,918.96, 5,877.36 and 2,814.12

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Solution

The fourth proportional to 3,918.96, 5,877.36 and 2,814.12 is: 4,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.96 : 5,877.36 = 2,814.12 : x
  2. Step 2: Convert to fraction form
    3,918.96/5,877.36 = 2,814.12/x
  3. Step 3: Cross multiply
    3,918.96x = 5,877.36 × 2,814.12
  4. Step 4: Simplify right side
    3,918.96x = 16,539,596.32
  5. Step 5: Solve for x
    x = 16,539,596.32/3,918.96
  6. Step 6: Final answer
    x = 4,220.40

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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.