Home / 2,856.80-4,285.22-1,008.06

Finding the Fourth Proportional to 2,856.80, 4,285.22 and 1,008.06

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Solution

The fourth proportional to 2,856.80, 4,285.22 and 1,008.06 is: 1,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.80 : 4,285.22 = 1,008.06 : x
  2. Step 2: Convert to fraction form
    2,856.80/4,285.22 = 1,008.06/x
  3. Step 3: Cross multiply
    2,856.80x = 4,285.22 × 1,008.06
  4. Step 4: Simplify right side
    2,856.80x = 4,319,758.87
  5. Step 5: Solve for x
    x = 4,319,758.87/2,856.80
  6. Step 6: Final answer
    x = 1,512.10

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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.