Home / 3,144.18-4,339.18-1,818.22

Finding the Fourth Proportional to 3,144.18, 4,339.18 and 1,818.22

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Solution

The fourth proportional to 3,144.18, 4,339.18 and 1,818.22 is: 2,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.18 : 4,339.18 = 1,818.22 : x
  2. Step 2: Convert to fraction form
    3,144.18/4,339.18 = 1,818.22/x
  3. Step 3: Cross multiply
    3,144.18x = 4,339.18 × 1,818.22
  4. Step 4: Simplify right side
    3,144.18x = 7,889,583.86
  5. Step 5: Solve for x
    x = 7,889,583.86/3,144.18
  6. Step 6: Final answer
    x = 2,509.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.