Home / 2,818.22-3,889.67-1,699.32

Finding the Fourth Proportional to 2,818.22, 3,889.67 and 1,699.32

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Solution

The fourth proportional to 2,818.22, 3,889.67 and 1,699.32 is: 2,345.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.22 : 3,889.67 = 1,699.32 : x
  2. Step 2: Convert to fraction form
    2,818.22/3,889.67 = 1,699.32/x
  3. Step 3: Cross multiply
    2,818.22x = 3,889.67 × 1,699.32
  4. Step 4: Simplify right side
    2,818.22x = 6,609,794.02
  5. Step 5: Solve for x
    x = 6,609,794.02/2,818.22
  6. Step 6: Final answer
    x = 2,345.38

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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.