Home / 3,060.15-4,221.63-1,880.79

Finding the Fourth Proportional to 3,060.15, 4,221.63 and 1,880.79

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Solution

The fourth proportional to 3,060.15, 4,221.63 and 1,880.79 is: 2,594.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.15 : 4,221.63 = 1,880.79 : x
  2. Step 2: Convert to fraction form
    3,060.15/4,221.63 = 1,880.79/x
  3. Step 3: Cross multiply
    3,060.15x = 4,221.63 × 1,880.79
  4. Step 4: Simplify right side
    3,060.15x = 7,939,999.49
  5. Step 5: Solve for x
    x = 7,939,999.49/3,060.15
  6. Step 6: Final answer
    x = 2,594.64

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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.