Home / 3,681.34-5,078.58-2,188.41

Finding the Fourth Proportional to 3,681.34, 5,078.58 and 2,188.41

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Solution

The fourth proportional to 3,681.34, 5,078.58 and 2,188.41 is: 3,019.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.34 : 5,078.58 = 2,188.41 : x
  2. Step 2: Convert to fraction form
    3,681.34/5,078.58 = 2,188.41/x
  3. Step 3: Cross multiply
    3,681.34x = 5,078.58 × 2,188.41
  4. Step 4: Simplify right side
    3,681.34x = 11,114,004.32
  5. Step 5: Solve for x
    x = 11,114,004.32/3,681.34
  6. Step 6: Final answer
    x = 3,019.01

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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.