Home / 3,877.86-5,816.31-1,245.16

Finding the Fourth Proportional to 3,877.86, 5,816.31 and 1,245.16

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Solution

The fourth proportional to 3,877.86, 5,816.31 and 1,245.16 is: 1,867.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.86 : 5,816.31 = 1,245.16 : x
  2. Step 2: Convert to fraction form
    3,877.86/5,816.31 = 1,245.16/x
  3. Step 3: Cross multiply
    3,877.86x = 5,816.31 × 1,245.16
  4. Step 4: Simplify right side
    3,877.86x = 7,242,239.67
  5. Step 5: Solve for x
    x = 7,242,239.67/3,877.86
  6. Step 6: Final answer
    x = 1,867.59

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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.