Home / 3,493.01-4,815.38-2,778.59

Finding the Fourth Proportional to 3,493.01, 4,815.38 and 2,778.59

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Solution

The fourth proportional to 3,493.01, 4,815.38 and 2,778.59 is: 3,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.01 : 4,815.38 = 2,778.59 : x
  2. Step 2: Convert to fraction form
    3,493.01/4,815.38 = 2,778.59/x
  3. Step 3: Cross multiply
    3,493.01x = 4,815.38 × 2,778.59
  4. Step 4: Simplify right side
    3,493.01x = 13,379,966.71
  5. Step 5: Solve for x
    x = 13,379,966.71/3,493.01
  6. Step 6: Final answer
    x = 3,830.50

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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.