Home / 3,031.16-4,184.10-1,912.82

Finding the Fourth Proportional to 3,031.16, 4,184.10 and 1,912.82

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Solution

The fourth proportional to 3,031.16, 4,184.10 and 1,912.82 is: 2,640.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.16 : 4,184.10 = 1,912.82 : x
  2. Step 2: Convert to fraction form
    3,031.16/4,184.10 = 1,912.82/x
  3. Step 3: Cross multiply
    3,031.16x = 4,184.10 × 1,912.82
  4. Step 4: Simplify right side
    3,031.16x = 8,003,432.78
  5. Step 5: Solve for x
    x = 8,003,432.78/3,031.16
  6. Step 6: Final answer
    x = 2,640.39

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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.