Home / 6,370.40-8,790.36-3,716.96

Finding the Fourth Proportional to 6,370.40, 8,790.36 and 3,716.96

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Solution

The fourth proportional to 6,370.40, 8,790.36 and 3,716.96 is: 5,128.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,370.40 : 8,790.36 = 3,716.96 : x
  2. Step 2: Convert to fraction form
    6,370.40/8,790.36 = 3,716.96/x
  3. Step 3: Cross multiply
    6,370.40x = 8,790.36 × 3,716.96
  4. Step 4: Simplify right side
    6,370.40x = 32,673,416.51
  5. Step 5: Solve for x
    x = 32,673,416.51/6,370.40
  6. Step 6: Final answer
    x = 5,128.94

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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.