Home / 3,187.98-4,401.52-1,994.76

Finding the Fourth Proportional to 3,187.98, 4,401.52 and 1,994.76

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Solution

The fourth proportional to 3,187.98, 4,401.52 and 1,994.76 is: 2,754.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.98 : 4,401.52 = 1,994.76 : x
  2. Step 2: Convert to fraction form
    3,187.98/4,401.52 = 1,994.76/x
  3. Step 3: Cross multiply
    3,187.98x = 4,401.52 × 1,994.76
  4. Step 4: Simplify right side
    3,187.98x = 8,779,971.05
  5. Step 5: Solve for x
    x = 8,779,971.05/3,187.98
  6. Step 6: Final answer
    x = 2,754.09

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.