Home / 1,905.95-2,860.97-1,687.93

Finding the Fourth Proportional to 1,905.95, 2,860.97 and 1,687.93

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Solution

The fourth proportional to 1,905.95, 2,860.97 and 1,687.93 is: 2,533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.95 : 2,860.97 = 1,687.93 : x
  2. Step 2: Convert to fraction form
    1,905.95/2,860.97 = 1,687.93/x
  3. Step 3: Cross multiply
    1,905.95x = 2,860.97 × 1,687.93
  4. Step 4: Simplify right side
    1,905.95x = 4,829,102.79
  5. Step 5: Solve for x
    x = 4,829,102.79/1,905.95
  6. Step 6: Final answer
    x = 2,533.70

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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.