Home / 1,926.48-2,669.71-1,889.56

Finding the Fourth Proportional to 1,926.48, 2,669.71 and 1,889.56

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Solution

The fourth proportional to 1,926.48, 2,669.71 and 1,889.56 is: 2,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.48 : 2,669.71 = 1,889.56 : x
  2. Step 2: Convert to fraction form
    1,926.48/2,669.71 = 1,889.56/x
  3. Step 3: Cross multiply
    1,926.48x = 2,669.71 × 1,889.56
  4. Step 4: Simplify right side
    1,926.48x = 5,044,577.23
  5. Step 5: Solve for x
    x = 5,044,577.23/1,926.48
  6. Step 6: Final answer
    x = 2,618.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.