Home / 3,851.14-5,776.91-1,218.44

Finding the Fourth Proportional to 3,851.14, 5,776.91 and 1,218.44

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Solution

The fourth proportional to 3,851.14, 5,776.91 and 1,218.44 is: 1,827.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.14 : 5,776.91 = 1,218.44 : x
  2. Step 2: Convert to fraction form
    3,851.14/5,776.91 = 1,218.44/x
  3. Step 3: Cross multiply
    3,851.14x = 5,776.91 × 1,218.44
  4. Step 4: Simplify right side
    3,851.14x = 7,038,818.22
  5. Step 5: Solve for x
    x = 7,038,818.22/3,851.14
  6. Step 6: Final answer
    x = 1,827.72

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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.