Home / 6,749.31-9,314.75-3,915.84

Finding the Fourth Proportional to 6,749.31, 9,314.75 and 3,915.84

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Solution

The fourth proportional to 6,749.31, 9,314.75 and 3,915.84 is: 5,404.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.31 : 9,314.75 = 3,915.84 : x
  2. Step 2: Convert to fraction form
    6,749.31/9,314.75 = 3,915.84/x
  3. Step 3: Cross multiply
    6,749.31x = 9,314.75 × 3,915.84
  4. Step 4: Simplify right side
    6,749.31x = 36,475,070.64
  5. Step 5: Solve for x
    x = 36,475,070.64/6,749.31
  6. Step 6: Final answer
    x = 5,404.27

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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.