Home / 3,144.67-4,339.61-1,818.35

Finding the Fourth Proportional to 3,144.67, 4,339.61 and 1,818.35

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Solution

The fourth proportional to 3,144.67, 4,339.61 and 1,818.35 is: 2,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.67 : 4,339.61 = 1,818.35 : x
  2. Step 2: Convert to fraction form
    3,144.67/4,339.61 = 1,818.35/x
  3. Step 3: Cross multiply
    3,144.67x = 4,339.61 × 1,818.35
  4. Step 4: Simplify right side
    3,144.67x = 7,890,899.05
  5. Step 5: Solve for x
    x = 7,890,899.05/3,144.67
  6. Step 6: Final answer
    x = 2,509.30

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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.