Home / 5,114.40-7,671.60-1,994.55

Finding the Fourth Proportional to 5,114.40, 7,671.60 and 1,994.55

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Solution

The fourth proportional to 5,114.40, 7,671.60 and 1,994.55 is: 2,991.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.40 : 7,671.60 = 1,994.55 : x
  2. Step 2: Convert to fraction form
    5,114.40/7,671.60 = 1,994.55/x
  3. Step 3: Cross multiply
    5,114.40x = 7,671.60 × 1,994.55
  4. Step 4: Simplify right side
    5,114.40x = 15,301,389.78
  5. Step 5: Solve for x
    x = 15,301,389.78/5,114.40
  6. Step 6: Final answer
    x = 2,991.83

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Double scale
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Similar ratio
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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.