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Finding the Fourth Proportional to 2,525.52, 3,788.47 and 770.68

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Solution

The fourth proportional to 2,525.52, 3,788.47 and 770.68 is: 1,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.52 : 3,788.47 = 770.68 : x
  2. Step 2: Convert to fraction form
    2,525.52/3,788.47 = 770.68/x
  3. Step 3: Cross multiply
    2,525.52x = 3,788.47 × 770.68
  4. Step 4: Simplify right side
    2,525.52x = 2,919,682.45
  5. Step 5: Solve for x
    x = 2,919,682.45/2,525.52
  6. Step 6: Final answer
    x = 1,156.07

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1.5x scale

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.