Home / 3,780.02-5,671.38-1,314.74

Finding the Fourth Proportional to 3,780.02, 5,671.38 and 1,314.74

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Solution

The fourth proportional to 3,780.02, 5,671.38 and 1,314.74 is: 1,972.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.02 : 5,671.38 = 1,314.74 : x
  2. Step 2: Convert to fraction form
    3,780.02/5,671.38 = 1,314.74/x
  3. Step 3: Cross multiply
    3,780.02x = 5,671.38 × 1,314.74
  4. Step 4: Simplify right side
    3,780.02x = 7,456,390.14
  5. Step 5: Solve for x
    x = 7,456,390.14/3,780.02
  6. Step 6: Final answer
    x = 1,972.58

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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.