Home / 3,678.93-5,077.59-2,107.11

Finding the Fourth Proportional to 3,678.93, 5,077.59 and 2,107.11

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Solution

The fourth proportional to 3,678.93, 5,077.59 and 2,107.11 is: 2,908.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.93 : 5,077.59 = 2,107.11 : x
  2. Step 2: Convert to fraction form
    3,678.93/5,077.59 = 2,107.11/x
  3. Step 3: Cross multiply
    3,678.93x = 5,077.59 × 2,107.11
  4. Step 4: Simplify right side
    3,678.93x = 10,699,040.66
  5. Step 5: Solve for x
    x = 10,699,040.66/3,678.93
  6. Step 6: Final answer
    x = 2,908.19

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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.