Home / 6,984.48-9,638.64-3,840.96

Finding the Fourth Proportional to 6,984.48, 9,638.64 and 3,840.96

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Solution

The fourth proportional to 6,984.48, 9,638.64 and 3,840.96 is: 5,300.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.48 : 9,638.64 = 3,840.96 : x
  2. Step 2: Convert to fraction form
    6,984.48/9,638.64 = 3,840.96/x
  3. Step 3: Cross multiply
    6,984.48x = 9,638.64 × 3,840.96
  4. Step 4: Simplify right side
    6,984.48x = 37,021,630.69
  5. Step 5: Solve for x
    x = 37,021,630.69/6,984.48
  6. Step 6: Final answer
    x = 5,300.56

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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.