Home / 3,143.07-4,712.43-1,827.63

Finding the Fourth Proportional to 3,143.07, 4,712.43 and 1,827.63

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Solution

The fourth proportional to 3,143.07, 4,712.43 and 1,827.63 is: 2,740.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.07 : 4,712.43 = 1,827.63 : x
  2. Step 2: Convert to fraction form
    3,143.07/4,712.43 = 1,827.63/x
  3. Step 3: Cross multiply
    3,143.07x = 4,712.43 × 1,827.63
  4. Step 4: Simplify right side
    3,143.07x = 8,612,578.44
  5. Step 5: Solve for x
    x = 8,612,578.44/3,143.07
  6. Step 6: Final answer
    x = 2,740.18

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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.