Home / 3,216.35-4,437.99-1,890.32

Finding the Fourth Proportional to 3,216.35, 4,437.99 and 1,890.32

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Solution

The fourth proportional to 3,216.35, 4,437.99 and 1,890.32 is: 2,608.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.35 : 4,437.99 = 1,890.32 : x
  2. Step 2: Convert to fraction form
    3,216.35/4,437.99 = 1,890.32/x
  3. Step 3: Cross multiply
    3,216.35x = 4,437.99 × 1,890.32
  4. Step 4: Simplify right side
    3,216.35x = 8,389,232.35
  5. Step 5: Solve for x
    x = 8,389,232.35/3,216.35
  6. Step 6: Final answer
    x = 2,608.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.