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Finding the Fourth Proportional to 1,828.55, 2,742.69 and 529.94

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Solution

The fourth proportional to 1,828.55, 2,742.69 and 529.94 is: 794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.55 : 2,742.69 = 529.94 : x
  2. Step 2: Convert to fraction form
    1,828.55/2,742.69 = 529.94/x
  3. Step 3: Cross multiply
    1,828.55x = 2,742.69 × 529.94
  4. Step 4: Simplify right side
    1,828.55x = 1,453,461.14
  5. Step 5: Solve for x
    x = 1,453,461.14/1,828.55
  6. Step 6: Final answer
    x = 794.87

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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.