Home / 3,187.86-4,783.68-1,726.98

Finding the Fourth Proportional to 3,187.86, 4,783.68 and 1,726.98

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Solution

The fourth proportional to 3,187.86, 4,783.68 and 1,726.98 is: 2,591.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.86 : 4,783.68 = 1,726.98 : x
  2. Step 2: Convert to fraction form
    3,187.86/4,783.68 = 1,726.98/x
  3. Step 3: Cross multiply
    3,187.86x = 4,783.68 × 1,726.98
  4. Step 4: Simplify right side
    3,187.86x = 8,261,319.69
  5. Step 5: Solve for x
    x = 8,261,319.69/3,187.86
  6. Step 6: Final answer
    x = 2,591.49

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Half scale
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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.