Home / 1,890.90-2,834.55-1,474.20

Finding the Fourth Proportional to 1,890.90, 2,834.55 and 1,474.20

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Solution

The fourth proportional to 1,890.90, 2,834.55 and 1,474.20 is: 2,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.90 : 2,834.55 = 1,474.20 : x
  2. Step 2: Convert to fraction form
    1,890.90/2,834.55 = 1,474.20/x
  3. Step 3: Cross multiply
    1,890.90x = 2,834.55 × 1,474.20
  4. Step 4: Simplify right side
    1,890.90x = 4,178,693.61
  5. Step 5: Solve for x
    x = 4,178,693.61/1,890.90
  6. Step 6: Final answer
    x = 2,209.90

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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.