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Finding the Fourth Proportional to 2,920.43, 4,029.02 and 1,799.42

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Solution

The fourth proportional to 2,920.43, 4,029.02 and 1,799.42 is: 2,482.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.43 : 4,029.02 = 1,799.42 : x
  2. Step 2: Convert to fraction form
    2,920.43/4,029.02 = 1,799.42/x
  3. Step 3: Cross multiply
    2,920.43x = 4,029.02 × 1,799.42
  4. Step 4: Simplify right side
    2,920.43x = 7,249,889.10
  5. Step 5: Solve for x
    x = 7,249,889.10/2,920.43
  6. Step 6: Final answer
    x = 2,482.48

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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.