Home / 1,423.23-2,134.85-556.94

Finding the Fourth Proportional to 1,423.23, 2,134.85 and 556.94

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Solution

The fourth proportional to 1,423.23, 2,134.85 and 556.94 is: 835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.23 : 2,134.85 = 556.94 : x
  2. Step 2: Convert to fraction form
    1,423.23/2,134.85 = 556.94/x
  3. Step 3: Cross multiply
    1,423.23x = 2,134.85 × 556.94
  4. Step 4: Simplify right side
    1,423.23x = 1,188,983.36
  5. Step 5: Solve for x
    x = 1,188,983.36/1,423.23
  6. Step 6: Final answer
    x = 835.41

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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.