Home / 3,491.39-4,819.36-2,312.84

Finding the Fourth Proportional to 3,491.39, 4,819.36 and 2,312.84

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Solution

The fourth proportional to 3,491.39, 4,819.36 and 2,312.84 is: 3,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.39 : 4,819.36 = 2,312.84 : x
  2. Step 2: Convert to fraction form
    3,491.39/4,819.36 = 2,312.84/x
  3. Step 3: Cross multiply
    3,491.39x = 4,819.36 × 2,312.84
  4. Step 4: Simplify right side
    3,491.39x = 11,146,408.58
  5. Step 5: Solve for x
    x = 11,146,408.58/3,491.39
  6. Step 6: Final answer
    x = 3,192.54

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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.