Home / 3,605.36-4,975.74-2,188.72

Finding the Fourth Proportional to 3,605.36, 4,975.74 and 2,188.72

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Solution

The fourth proportional to 3,605.36, 4,975.74 and 2,188.72 is: 3,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.36 : 4,975.74 = 2,188.72 : x
  2. Step 2: Convert to fraction form
    3,605.36/4,975.74 = 2,188.72/x
  3. Step 3: Cross multiply
    3,605.36x = 4,975.74 × 2,188.72
  4. Step 4: Simplify right side
    3,605.36x = 10,890,476.77
  5. Step 5: Solve for x
    x = 10,890,476.77/3,605.36
  6. Step 6: Final answer
    x = 3,020.64

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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.