Home / 3,818.50-5,728.64-1,185.87

Finding the Fourth Proportional to 3,818.50, 5,728.64 and 1,185.87

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Solution

The fourth proportional to 3,818.50, 5,728.64 and 1,185.87 is: 1,779.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.50 : 5,728.64 = 1,185.87 : x
  2. Step 2: Convert to fraction form
    3,818.50/5,728.64 = 1,185.87/x
  3. Step 3: Cross multiply
    3,818.50x = 5,728.64 × 1,185.87
  4. Step 4: Simplify right side
    3,818.50x = 6,793,426.39
  5. Step 5: Solve for x
    x = 6,793,426.39/3,818.50
  6. Step 6: Final answer
    x = 1,779.08

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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.