Home / 2,137.69-3,207.62-1,972.45

Finding the Fourth Proportional to 2,137.69, 3,207.62 and 1,972.45

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Solution

The fourth proportional to 2,137.69, 3,207.62 and 1,972.45 is: 2,959.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.69 : 3,207.62 = 1,972.45 : x
  2. Step 2: Convert to fraction form
    2,137.69/3,207.62 = 1,972.45/x
  3. Step 3: Cross multiply
    2,137.69x = 3,207.62 × 1,972.45
  4. Step 4: Simplify right side
    2,137.69x = 6,326,870.07
  5. Step 5: Solve for x
    x = 6,326,870.07/2,137.69
  6. Step 6: Final answer
    x = 2,959.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.