Home / 3,279.36-4,885.86-3,114.12

Finding the Fourth Proportional to 3,279.36, 4,885.86 and 3,114.12

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Solution

The fourth proportional to 3,279.36, 4,885.86 and 3,114.12 is: 4,639.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.36 : 4,885.86 = 3,114.12 : x
  2. Step 2: Convert to fraction form
    3,279.36/4,885.86 = 3,114.12/x
  3. Step 3: Cross multiply
    3,279.36x = 4,885.86 × 3,114.12
  4. Step 4: Simplify right side
    3,279.36x = 15,215,154.34
  5. Step 5: Solve for x
    x = 15,215,154.34/3,279.36
  6. Step 6: Final answer
    x = 4,639.67

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.