Home / 2,856.47-4,285.91-1,817.64

Finding the Fourth Proportional to 2,856.47, 4,285.91 and 1,817.64

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Solution

The fourth proportional to 2,856.47, 4,285.91 and 1,817.64 is: 2,727.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.47 : 4,285.91 = 1,817.64 : x
  2. Step 2: Convert to fraction form
    2,856.47/4,285.91 = 1,817.64/x
  3. Step 3: Cross multiply
    2,856.47x = 4,285.91 × 1,817.64
  4. Step 4: Simplify right side
    2,856.47x = 7,790,246.00
  5. Step 5: Solve for x
    x = 7,790,246.00/2,856.47
  6. Step 6: Final answer
    x = 2,727.23

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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.