Home / 3,818.77-5,720.75-2,816.30

Finding the Fourth Proportional to 3,818.77, 5,720.75 and 2,816.30

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Solution

The fourth proportional to 3,818.77, 5,720.75 and 2,816.30 is: 4,218.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.77 : 5,720.75 = 2,816.30 : x
  2. Step 2: Convert to fraction form
    3,818.77/5,720.75 = 2,816.30/x
  3. Step 3: Cross multiply
    3,818.77x = 5,720.75 × 2,816.30
  4. Step 4: Simplify right side
    3,818.77x = 16,111,334.75
  5. Step 5: Solve for x
    x = 16,111,334.75/3,818.77
  6. Step 6: Final answer
    x = 4,218.98

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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.