Home / 1,423.62-2,130.41-1,230.89

Finding the Fourth Proportional to 1,423.62, 2,130.41 and 1,230.89

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Solution

The fourth proportional to 1,423.62, 2,130.41 and 1,230.89 is: 1,841.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.62 : 2,130.41 = 1,230.89 : x
  2. Step 2: Convert to fraction form
    1,423.62/2,130.41 = 1,230.89/x
  3. Step 3: Cross multiply
    1,423.62x = 2,130.41 × 1,230.89
  4. Step 4: Simplify right side
    1,423.62x = 2,622,300.36
  5. Step 5: Solve for x
    x = 2,622,300.36/1,423.62
  6. Step 6: Final answer
    x = 1,841.99

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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.