Home / 2,835.18-4,247.10-2,215.80

Finding the Fourth Proportional to 2,835.18, 4,247.10 and 2,215.80

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Solution

The fourth proportional to 2,835.18, 4,247.10 and 2,215.80 is: 3,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.18 : 4,247.10 = 2,215.80 : x
  2. Step 2: Convert to fraction form
    2,835.18/4,247.10 = 2,215.80/x
  3. Step 3: Cross multiply
    2,835.18x = 4,247.10 × 2,215.80
  4. Step 4: Simplify right side
    2,835.18x = 9,410,724.18
  5. Step 5: Solve for x
    x = 9,410,724.18/2,835.18
  6. Step 6: Final answer
    x = 3,319.27

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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.