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Finding the Fourth Proportional to 3,090.37, 4,635.51 and 750.39

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Solution

The fourth proportional to 3,090.37, 4,635.51 and 750.39 is: 1,125.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.37 : 4,635.51 = 750.39 : x
  2. Step 2: Convert to fraction form
    3,090.37/4,635.51 = 750.39/x
  3. Step 3: Cross multiply
    3,090.37x = 4,635.51 × 750.39
  4. Step 4: Simplify right side
    3,090.37x = 3,478,446.14
  5. Step 5: Solve for x
    x = 3,478,446.14/3,090.37
  6. Step 6: Final answer
    x = 1,125.58

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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.