Home / 1,928.75-2,890.69-1,607.99

Finding the Fourth Proportional to 1,928.75, 2,890.69 and 1,607.99

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Solution

The fourth proportional to 1,928.75, 2,890.69 and 1,607.99 is: 2,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.75 : 2,890.69 = 1,607.99 : x
  2. Step 2: Convert to fraction form
    1,928.75/2,890.69 = 1,607.99/x
  3. Step 3: Cross multiply
    1,928.75x = 2,890.69 × 1,607.99
  4. Step 4: Simplify right side
    1,928.75x = 4,648,200.61
  5. Step 5: Solve for x
    x = 4,648,200.61/1,928.75
  6. Step 6: Final answer
    x = 2,409.95

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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.