Home / 1,230.21-1,846.67-1,225.64

Finding the Fourth Proportional to 1,230.21, 1,846.67 and 1,225.64

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Solution

The fourth proportional to 1,230.21, 1,846.67 and 1,225.64 is: 1,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.21 : 1,846.67 = 1,225.64 : x
  2. Step 2: Convert to fraction form
    1,230.21/1,846.67 = 1,225.64/x
  3. Step 3: Cross multiply
    1,230.21x = 1,846.67 × 1,225.64
  4. Step 4: Simplify right side
    1,230.21x = 2,263,337.26
  5. Step 5: Solve for x
    x = 2,263,337.26/1,230.21
  6. Step 6: Final answer
    x = 1,839.80

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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.