Home / 2,001.41-2,981.98-1,889.63

Finding the Fourth Proportional to 2,001.41, 2,981.98 and 1,889.63

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Solution

The fourth proportional to 2,001.41, 2,981.98 and 1,889.63 is: 2,815.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.41 : 2,981.98 = 1,889.63 : x
  2. Step 2: Convert to fraction form
    2,001.41/2,981.98 = 1,889.63/x
  3. Step 3: Cross multiply
    2,001.41x = 2,981.98 × 1,889.63
  4. Step 4: Simplify right side
    2,001.41x = 5,634,838.87
  5. Step 5: Solve for x
    x = 5,634,838.87/2,001.41
  6. Step 6: Final answer
    x = 2,815.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.