Home / 3,188.08-4,399.52-1,790.82

Finding the Fourth Proportional to 3,188.08, 4,399.52 and 1,790.82

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Solution

The fourth proportional to 3,188.08, 4,399.52 and 1,790.82 is: 2,471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.08 : 4,399.52 = 1,790.82 : x
  2. Step 2: Convert to fraction form
    3,188.08/4,399.52 = 1,790.82/x
  3. Step 3: Cross multiply
    3,188.08x = 4,399.52 × 1,790.82
  4. Step 4: Simplify right side
    3,188.08x = 7,878,748.41
  5. Step 5: Solve for x
    x = 7,878,748.41/3,188.08
  6. Step 6: Final answer
    x = 2,471.31

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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.