Home / 3,311.32-4,569.15-1,984.75

Finding the Fourth Proportional to 3,311.32, 4,569.15 and 1,984.75

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Solution

The fourth proportional to 3,311.32, 4,569.15 and 1,984.75 is: 2,738.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.32 : 4,569.15 = 1,984.75 : x
  2. Step 2: Convert to fraction form
    3,311.32/4,569.15 = 1,984.75/x
  3. Step 3: Cross multiply
    3,311.32x = 4,569.15 × 1,984.75
  4. Step 4: Simplify right side
    3,311.32x = 9,068,620.46
  5. Step 5: Solve for x
    x = 9,068,620.46/3,311.32
  6. Step 6: Final answer
    x = 2,738.67

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