Home / 1,890.30-2,835.46-574.07

Finding the Fourth Proportional to 1,890.30, 2,835.46 and 574.07

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Solution

The fourth proportional to 1,890.30, 2,835.46 and 574.07 is: 861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.30 : 2,835.46 = 574.07 : x
  2. Step 2: Convert to fraction form
    1,890.30/2,835.46 = 574.07/x
  3. Step 3: Cross multiply
    1,890.30x = 2,835.46 × 574.07
  4. Step 4: Simplify right side
    1,890.30x = 1,627,735.47
  5. Step 5: Solve for x
    x = 1,627,735.47/1,890.30
  6. Step 6: Final answer
    x = 861.10

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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.