Home / 3,944.22-5,915.80-1,312.08

Finding the Fourth Proportional to 3,944.22, 5,915.80 and 1,312.08

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Solution

The fourth proportional to 3,944.22, 5,915.80 and 1,312.08 is: 1,967.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.22 : 5,915.80 = 1,312.08 : x
  2. Step 2: Convert to fraction form
    3,944.22/5,915.80 = 1,312.08/x
  3. Step 3: Cross multiply
    3,944.22x = 5,915.80 × 1,312.08
  4. Step 4: Simplify right side
    3,944.22x = 7,762,002.86
  5. Step 5: Solve for x
    x = 7,762,002.86/3,944.22
  6. Step 6: Final answer
    x = 1,967.94

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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.