Home / 6,440.40-8,886.42-3,785.94

Finding the Fourth Proportional to 6,440.40, 8,886.42 and 3,785.94

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Solution

The fourth proportional to 6,440.40, 8,886.42 and 3,785.94 is: 5,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.40 : 8,886.42 = 3,785.94 : x
  2. Step 2: Convert to fraction form
    6,440.40/8,886.42 = 3,785.94/x
  3. Step 3: Cross multiply
    6,440.40x = 8,886.42 × 3,785.94
  4. Step 4: Simplify right side
    6,440.40x = 33,643,452.93
  5. Step 5: Solve for x
    x = 33,643,452.93/6,440.40
  6. Step 6: Final answer
    x = 5,223.81

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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.