Home / 1,932.98-2,900.28-1,389.47

Finding the Fourth Proportional to 1,932.98, 2,900.28 and 1,389.47

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Solution

The fourth proportional to 1,932.98, 2,900.28 and 1,389.47 is: 2,084.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.98 : 2,900.28 = 1,389.47 : x
  2. Step 2: Convert to fraction form
    1,932.98/2,900.28 = 1,389.47/x
  3. Step 3: Cross multiply
    1,932.98x = 2,900.28 × 1,389.47
  4. Step 4: Simplify right side
    1,932.98x = 4,029,852.05
  5. Step 5: Solve for x
    x = 4,029,852.05/1,932.98
  6. Step 6: Final answer
    x = 2,084.79

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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.