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Finding the Fourth Proportional to 6,698.70, 9,243.75 and 4,045.50

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Solution

The fourth proportional to 6,698.70, 9,243.75 and 4,045.50 is: 5,582.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698.70 : 9,243.75 = 4,045.50 : x
  2. Step 2: Convert to fraction form
    6,698.70/9,243.75 = 4,045.50/x
  3. Step 3: Cross multiply
    6,698.70x = 9,243.75 × 4,045.50
  4. Step 4: Simplify right side
    6,698.70x = 37,395,590.63
  5. Step 5: Solve for x
    x = 37,395,590.63/6,698.70
  6. Step 6: Final answer
    x = 5,582.51

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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.