Home / 3,527.21-5,290.86-2,431.28

Finding the Fourth Proportional to 3,527.21, 5,290.86 and 2,431.28

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Solution

The fourth proportional to 3,527.21, 5,290.86 and 2,431.28 is: 3,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,527.21 : 5,290.86 = 2,431.28 : x
  2. Step 2: Convert to fraction form
    3,527.21/5,290.86 = 2,431.28/x
  3. Step 3: Cross multiply
    3,527.21x = 5,290.86 × 2,431.28
  4. Step 4: Simplify right side
    3,527.21x = 12,863,584.45
  5. Step 5: Solve for x
    x = 12,863,584.45/3,527.21
  6. Step 6: Final answer
    x = 3,646.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.