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Finding the Fourth Proportional to 4,245.84, 6,368.97 and 1,780.74

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Solution

The fourth proportional to 4,245.84, 6,368.97 and 1,780.74 is: 2,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.84 : 6,368.97 = 1,780.74 : x
  2. Step 2: Convert to fraction form
    4,245.84/6,368.97 = 1,780.74/x
  3. Step 3: Cross multiply
    4,245.84x = 6,368.97 × 1,780.74
  4. Step 4: Simplify right side
    4,245.84x = 11,341,470.73
  5. Step 5: Solve for x
    x = 11,341,470.73/4,245.84
  6. Step 6: Final answer
    x = 2,671.20

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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.