Home / 3,181.69-4,390.51-1,837.36

Finding the Fourth Proportional to 3,181.69, 4,390.51 and 1,837.36

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Solution

The fourth proportional to 3,181.69, 4,390.51 and 1,837.36 is: 2,535.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.69 : 4,390.51 = 1,837.36 : x
  2. Step 2: Convert to fraction form
    3,181.69/4,390.51 = 1,837.36/x
  3. Step 3: Cross multiply
    3,181.69x = 4,390.51 × 1,837.36
  4. Step 4: Simplify right side
    3,181.69x = 8,066,947.45
  5. Step 5: Solve for x
    x = 8,066,947.45/3,181.69
  6. Step 6: Final answer
    x = 2,535.43

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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.