Home / 2,215.35-3,319.38-1,435.32

Finding the Fourth Proportional to 2,215.35, 3,319.38 and 1,435.32

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Solution

The fourth proportional to 2,215.35, 3,319.38 and 1,435.32 is: 2,150.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.35 : 3,319.38 = 1,435.32 : x
  2. Step 2: Convert to fraction form
    2,215.35/3,319.38 = 1,435.32/x
  3. Step 3: Cross multiply
    2,215.35x = 3,319.38 × 1,435.32
  4. Step 4: Simplify right side
    2,215.35x = 4,764,372.50
  5. Step 5: Solve for x
    x = 4,764,372.50/2,215.35
  6. Step 6: Final answer
    x = 2,150.62

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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.