Home / 6,815.08-9,405.08-3,984.28

Finding the Fourth Proportional to 6,815.08, 9,405.08 and 3,984.28

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Solution

The fourth proportional to 6,815.08, 9,405.08 and 3,984.28 is: 5,498.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.08 : 9,405.08 = 3,984.28 : x
  2. Step 2: Convert to fraction form
    6,815.08/9,405.08 = 3,984.28/x
  3. Step 3: Cross multiply
    6,815.08x = 9,405.08 × 3,984.28
  4. Step 4: Simplify right side
    6,815.08x = 37,472,472.14
  5. Step 5: Solve for x
    x = 37,472,472.14/6,815.08
  6. Step 6: Final answer
    x = 5,498.46

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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.