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Finding the Fourth Proportional to 1,758.25, 2,636.98 and 525.67

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Solution

The fourth proportional to 1,758.25, 2,636.98 and 525.67 is: 788.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.25 : 2,636.98 = 525.67 : x
  2. Step 2: Convert to fraction form
    1,758.25/2,636.98 = 525.67/x
  3. Step 3: Cross multiply
    1,758.25x = 2,636.98 × 525.67
  4. Step 4: Simplify right side
    1,758.25x = 1,386,181.28
  5. Step 5: Solve for x
    x = 1,386,181.28/1,758.25
  6. Step 6: Final answer
    x = 788.39

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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.