Home / 3,491.70-4,818.93-1,999.86

Finding the Fourth Proportional to 3,491.70, 4,818.93 and 1,999.86

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Solution

The fourth proportional to 3,491.70, 4,818.93 and 1,999.86 is: 2,760.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.70 : 4,818.93 = 1,999.86 : x
  2. Step 2: Convert to fraction form
    3,491.70/4,818.93 = 1,999.86/x
  3. Step 3: Cross multiply
    3,491.70x = 4,818.93 × 1,999.86
  4. Step 4: Simplify right side
    3,491.70x = 9,637,185.35
  5. Step 5: Solve for x
    x = 9,637,185.35/3,491.70
  6. Step 6: Final answer
    x = 2,760.03

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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.