Home / 1,890.34-2,835.39-1,160.02

Finding the Fourth Proportional to 1,890.34, 2,835.39 and 1,160.02

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Solution

The fourth proportional to 1,890.34, 2,835.39 and 1,160.02 is: 1,739.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.34 : 2,835.39 = 1,160.02 : x
  2. Step 2: Convert to fraction form
    1,890.34/2,835.39 = 1,160.02/x
  3. Step 3: Cross multiply
    1,890.34x = 2,835.39 × 1,160.02
  4. Step 4: Simplify right side
    1,890.34x = 3,289,109.11
  5. Step 5: Solve for x
    x = 3,289,109.11/1,890.34
  6. Step 6: Final answer
    x = 1,739.96

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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.