Home / 2,289.01-3,158.99-1,393.10

Finding the Fourth Proportional to 2,289.01, 3,158.99 and 1,393.10

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Solution

The fourth proportional to 2,289.01, 3,158.99 and 1,393.10 is: 1,922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.01 : 3,158.99 = 1,393.10 : x
  2. Step 2: Convert to fraction form
    2,289.01/3,158.99 = 1,393.10/x
  3. Step 3: Cross multiply
    2,289.01x = 3,158.99 × 1,393.10
  4. Step 4: Simplify right side
    2,289.01x = 4,400,800.35
  5. Step 5: Solve for x
    x = 4,400,800.35/2,289.01
  6. Step 6: Final answer
    x = 1,922.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.