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Finding the Fourth Proportional to 940.59, 1,410.88 and 758.34

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Solution

The fourth proportional to 940.59, 1,410.88 and 758.34 is: 1,137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.59 : 1,410.88 = 758.34 : x
  2. Step 2: Convert to fraction form
    940.59/1,410.88 = 758.34/x
  3. Step 3: Cross multiply
    940.59x = 1,410.88 × 758.34
  4. Step 4: Simplify right side
    940.59x = 1,069,926.74
  5. Step 5: Solve for x
    x = 1,069,926.74/940.59
  6. Step 6: Final answer
    x = 1,137.51

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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.