Home / 4,819.12-6,649.68-2,830.32

Finding the Fourth Proportional to 4,819.12, 6,649.68 and 2,830.32

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Solution

The fourth proportional to 4,819.12, 6,649.68 and 2,830.32 is: 3,905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,819.12 : 6,649.68 = 2,830.32 : x
  2. Step 2: Convert to fraction form
    4,819.12/6,649.68 = 2,830.32/x
  3. Step 3: Cross multiply
    4,819.12x = 6,649.68 × 2,830.32
  4. Step 4: Simplify right side
    4,819.12x = 18,820,710.23
  5. Step 5: Solve for x
    x = 18,820,710.23/4,819.12
  6. Step 6: Final answer
    x = 3,905.42

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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.