Home / 2,856.04-4,284.12-1,213.36

Finding the Fourth Proportional to 2,856.04, 4,284.12 and 1,213.36

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Solution

The fourth proportional to 2,856.04, 4,284.12 and 1,213.36 is: 1,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.04 : 4,284.12 = 1,213.36 : x
  2. Step 2: Convert to fraction form
    2,856.04/4,284.12 = 1,213.36/x
  3. Step 3: Cross multiply
    2,856.04x = 4,284.12 × 1,213.36
  4. Step 4: Simplify right side
    2,856.04x = 5,198,179.84
  5. Step 5: Solve for x
    x = 5,198,179.84/2,856.04
  6. Step 6: Final answer
    x = 1,820.07

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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.