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Finding the Fourth Proportional to 6,698.40, 9,243.78 and 3,714.26

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Solution

The fourth proportional to 6,698.40, 9,243.78 and 3,714.26 is: 5,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698.40 : 9,243.78 = 3,714.26 : x
  2. Step 2: Convert to fraction form
    6,698.40/9,243.78 = 3,714.26/x
  3. Step 3: Cross multiply
    6,698.40x = 9,243.78 × 3,714.26
  4. Step 4: Simplify right side
    6,698.40x = 34,333,802.30
  5. Step 5: Solve for x
    x = 34,333,802.30/6,698.40
  6. Step 6: Final answer
    x = 5,125.67

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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.