Home / 4,819.32-6,651.77-3,137.80

Finding the Fourth Proportional to 4,819.32, 6,651.77 and 3,137.80

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Solution

The fourth proportional to 4,819.32, 6,651.77 and 3,137.80 is: 4,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,819.32 : 6,651.77 = 3,137.80 : x
  2. Step 2: Convert to fraction form
    4,819.32/6,651.77 = 3,137.80/x
  3. Step 3: Cross multiply
    4,819.32x = 6,651.77 × 3,137.80
  4. Step 4: Simplify right side
    4,819.32x = 20,871,921.71
  5. Step 5: Solve for x
    x = 20,871,921.71/4,819.32
  6. Step 6: Final answer
    x = 4,330.89

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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.