Home / 3,815.06-5,263.89-2,765.30

Finding the Fourth Proportional to 3,815.06, 5,263.89 and 2,765.30

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Solution

The fourth proportional to 3,815.06, 5,263.89 and 2,765.30 is: 3,815.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.06 : 5,263.89 = 2,765.30 : x
  2. Step 2: Convert to fraction form
    3,815.06/5,263.89 = 2,765.30/x
  3. Step 3: Cross multiply
    3,815.06x = 5,263.89 × 2,765.30
  4. Step 4: Simplify right side
    3,815.06x = 14,556,235.02
  5. Step 5: Solve for x
    x = 14,556,235.02/3,815.06
  6. Step 6: Final answer
    x = 3,815.47

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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.