Home / 3,645.46-5,030.78-2,759.72

Finding the Fourth Proportional to 3,645.46, 5,030.78 and 2,759.72

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Solution

The fourth proportional to 3,645.46, 5,030.78 and 2,759.72 is: 3,808.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.46 : 5,030.78 = 2,759.72 : x
  2. Step 2: Convert to fraction form
    3,645.46/5,030.78 = 2,759.72/x
  3. Step 3: Cross multiply
    3,645.46x = 5,030.78 × 2,759.72
  4. Step 4: Simplify right side
    3,645.46x = 13,883,556.81
  5. Step 5: Solve for x
    x = 13,883,556.81/3,645.46
  6. Step 6: Final answer
    x = 3,808.46

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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.