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Finding the Fourth Proportional to 3,752.40, 5,628.56 and 1,671.88

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Solution

The fourth proportional to 3,752.40, 5,628.56 and 1,671.88 is: 2,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.40 : 5,628.56 = 1,671.88 : x
  2. Step 2: Convert to fraction form
    3,752.40/5,628.56 = 1,671.88/x
  3. Step 3: Cross multiply
    3,752.40x = 5,628.56 × 1,671.88
  4. Step 4: Simplify right side
    3,752.40x = 9,410,276.89
  5. Step 5: Solve for x
    x = 9,410,276.89/3,752.40
  6. Step 6: Final answer
    x = 2,507.80

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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.