Home / 1,299.25-1,948.97-529.75

Finding the Fourth Proportional to 1,299.25, 1,948.97 and 529.75

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Solution

The fourth proportional to 1,299.25, 1,948.97 and 529.75 is: 794.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299.25 : 1,948.97 = 529.75 : x
  2. Step 2: Convert to fraction form
    1,299.25/1,948.97 = 529.75/x
  3. Step 3: Cross multiply
    1,299.25x = 1,948.97 × 529.75
  4. Step 4: Simplify right side
    1,299.25x = 1,032,466.86
  5. Step 5: Solve for x
    x = 1,032,466.86/1,299.25
  6. Step 6: Final answer
    x = 794.66

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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.