Home / 2,799.91-3,864.54-1,621.63

Finding the Fourth Proportional to 2,799.91, 3,864.54 and 1,621.63

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Solution

The fourth proportional to 2,799.91, 3,864.54 and 1,621.63 is: 2,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.91 : 3,864.54 = 1,621.63 : x
  2. Step 2: Convert to fraction form
    2,799.91/3,864.54 = 1,621.63/x
  3. Step 3: Cross multiply
    2,799.91x = 3,864.54 × 1,621.63
  4. Step 4: Simplify right side
    2,799.91x = 6,266,854.00
  5. Step 5: Solve for x
    x = 6,266,854.00/2,799.91
  6. Step 6: Final answer
    x = 2,238.23

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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.