Home / 5,735.45-7,915.38-3,378.05

Finding the Fourth Proportional to 5,735.45, 7,915.38 and 3,378.05

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Solution

The fourth proportional to 5,735.45, 7,915.38 and 3,378.05 is: 4,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,735.45 : 7,915.38 = 3,378.05 : x
  2. Step 2: Convert to fraction form
    5,735.45/7,915.38 = 3,378.05/x
  3. Step 3: Cross multiply
    5,735.45x = 7,915.38 × 3,378.05
  4. Step 4: Simplify right side
    5,735.45x = 26,738,549.41
  5. Step 5: Solve for x
    x = 26,738,549.41/5,735.45
  6. Step 6: Final answer
    x = 4,661.98

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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.