Home / 4,245.58-6,370.85-1,780.21

Finding the Fourth Proportional to 4,245.58, 6,370.85 and 1,780.21

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Solution

The fourth proportional to 4,245.58, 6,370.85 and 1,780.21 is: 2,671.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.58 : 6,370.85 = 1,780.21 : x
  2. Step 2: Convert to fraction form
    4,245.58/6,370.85 = 1,780.21/x
  3. Step 3: Cross multiply
    4,245.58x = 6,370.85 × 1,780.21
  4. Step 4: Simplify right side
    4,245.58x = 11,341,463.29
  5. Step 5: Solve for x
    x = 11,341,463.29/4,245.58
  6. Step 6: Final answer
    x = 2,671.36

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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.