Home / 2,820.64-4,226.28-1,994.82

Finding the Fourth Proportional to 2,820.64, 4,226.28 and 1,994.82

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Solution

The fourth proportional to 2,820.64, 4,226.28 and 1,994.82 is: 2,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.64 : 4,226.28 = 1,994.82 : x
  2. Step 2: Convert to fraction form
    2,820.64/4,226.28 = 1,994.82/x
  3. Step 3: Cross multiply
    2,820.64x = 4,226.28 × 1,994.82
  4. Step 4: Simplify right side
    2,820.64x = 8,430,667.87
  5. Step 5: Solve for x
    x = 8,430,667.87/2,820.64
  6. Step 6: Final answer
    x = 2,988.92

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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.