Home / 6,386.82-8,813.66-3,554.20

Finding the Fourth Proportional to 6,386.82, 8,813.66 and 3,554.20

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Solution

The fourth proportional to 6,386.82, 8,813.66 and 3,554.20 is: 4,904.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.82 : 8,813.66 = 3,554.20 : x
  2. Step 2: Convert to fraction form
    6,386.82/8,813.66 = 3,554.20/x
  3. Step 3: Cross multiply
    6,386.82x = 8,813.66 × 3,554.20
  4. Step 4: Simplify right side
    6,386.82x = 31,325,510.37
  5. Step 5: Solve for x
    x = 31,325,510.37/6,386.82
  6. Step 6: Final answer
    x = 4,904.71

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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.