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Finding the Fourth Proportional to 751.89, 1,037.42 and 453

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Solution

The fourth proportional to 751.89, 1,037.42 and 453 is: 625.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    751.89 : 1,037.42 = 453 : x
  2. Step 2: Convert to fraction form
    751.89/1,037.42 = 453/x
  3. Step 3: Cross multiply
    751.89x = 1,037.42 × 453
  4. Step 4: Simplify right side
    751.89x = 469,951.26
  5. Step 5: Solve for x
    x = 469,951.26/751.89
  6. Step 6: Final answer
    x = 625.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.