Home / 3,946.37-5,915.80-1,575.90

Finding the Fourth Proportional to 3,946.37, 5,915.80 and 1,575.90

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Solution

The fourth proportional to 3,946.37, 5,915.80 and 1,575.90 is: 2,362.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.37 : 5,915.80 = 1,575.90 : x
  2. Step 2: Convert to fraction form
    3,946.37/5,915.80 = 1,575.90/x
  3. Step 3: Cross multiply
    3,946.37x = 5,915.80 × 1,575.90
  4. Step 4: Simplify right side
    3,946.37x = 9,322,711.19
  5. Step 5: Solve for x
    x = 9,322,711.19/3,946.37
  6. Step 6: Final answer
    x = 2,362.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.