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Finding the Fourth Proportional to 2,749.58, 4,124.37 and 669.58

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Solution

The fourth proportional to 2,749.58, 4,124.37 and 669.58 is: 1,004.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.58 : 4,124.37 = 669.58 : x
  2. Step 2: Convert to fraction form
    2,749.58/4,124.37 = 669.58/x
  3. Step 3: Cross multiply
    2,749.58x = 4,124.37 × 669.58
  4. Step 4: Simplify right side
    2,749.58x = 2,761,592.32
  5. Step 5: Solve for x
    x = 2,761,592.32/2,749.58
  6. Step 6: Final answer
    x = 1,004.37

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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.