Home / 2,783.07-3,837.78-2,386.11

Finding the Fourth Proportional to 2,783.07, 3,837.78 and 2,386.11

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Solution

The fourth proportional to 2,783.07, 3,837.78 and 2,386.11 is: 3,290.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.07 : 3,837.78 = 2,386.11 : x
  2. Step 2: Convert to fraction form
    2,783.07/3,837.78 = 2,386.11/x
  3. Step 3: Cross multiply
    2,783.07x = 3,837.78 × 2,386.11
  4. Step 4: Simplify right side
    2,783.07x = 9,157,365.24
  5. Step 5: Solve for x
    x = 9,157,365.24/2,783.07
  6. Step 6: Final answer
    x = 3,290.38

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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.