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Finding the Fourth Proportional to 1,888.88, 2,820.94 and 1,629.41

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Solution

The fourth proportional to 1,888.88, 2,820.94 and 1,629.41 is: 2,433.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.88 : 2,820.94 = 1,629.41 : x
  2. Step 2: Convert to fraction form
    1,888.88/2,820.94 = 1,629.41/x
  3. Step 3: Cross multiply
    1,888.88x = 2,820.94 × 1,629.41
  4. Step 4: Simplify right side
    1,888.88x = 4,596,449.67
  5. Step 5: Solve for x
    x = 4,596,449.67/1,888.88
  6. Step 6: Final answer
    x = 2,433.43

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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.