Home / 1,898.20-2,847.30-1,347.40

Finding the Fourth Proportional to 1,898.20, 2,847.30 and 1,347.40

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Solution

The fourth proportional to 1,898.20, 2,847.30 and 1,347.40 is: 2,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.20 : 2,847.30 = 1,347.40 : x
  2. Step 2: Convert to fraction form
    1,898.20/2,847.30 = 1,347.40/x
  3. Step 3: Cross multiply
    1,898.20x = 2,847.30 × 1,347.40
  4. Step 4: Simplify right side
    1,898.20x = 3,836,452.02
  5. Step 5: Solve for x
    x = 3,836,452.02/1,898.20
  6. Step 6: Final answer
    x = 2,021.10

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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.