Home / 2,970.86-4,100.09-1,711.96

Finding the Fourth Proportional to 2,970.86, 4,100.09 and 1,711.96

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Solution

The fourth proportional to 2,970.86, 4,100.09 and 1,711.96 is: 2,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.86 : 4,100.09 = 1,711.96 : x
  2. Step 2: Convert to fraction form
    2,970.86/4,100.09 = 1,711.96/x
  3. Step 3: Cross multiply
    2,970.86x = 4,100.09 × 1,711.96
  4. Step 4: Simplify right side
    2,970.86x = 7,019,190.08
  5. Step 5: Solve for x
    x = 7,019,190.08/2,970.86
  6. Step 6: Final answer
    x = 2,362.68

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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.