Home / 2,818.68-3,889.52-1,623.35

Finding the Fourth Proportional to 2,818.68, 3,889.52 and 1,623.35

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Solution

The fourth proportional to 2,818.68, 3,889.52 and 1,623.35 is: 2,240.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.68 : 3,889.52 = 1,623.35 : x
  2. Step 2: Convert to fraction form
    2,818.68/3,889.52 = 1,623.35/x
  3. Step 3: Cross multiply
    2,818.68x = 3,889.52 × 1,623.35
  4. Step 4: Simplify right side
    2,818.68x = 6,314,024.73
  5. Step 5: Solve for x
    x = 6,314,024.73/2,818.68
  6. Step 6: Final answer
    x = 2,240.06

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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.