Home / 3,275.12-4,516.71-2,155.64

Finding the Fourth Proportional to 3,275.12, 4,516.71 and 2,155.64

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Solution

The fourth proportional to 3,275.12, 4,516.71 and 2,155.64 is: 2,972.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.12 : 4,516.71 = 2,155.64 : x
  2. Step 2: Convert to fraction form
    3,275.12/4,516.71 = 2,155.64/x
  3. Step 3: Cross multiply
    3,275.12x = 4,516.71 × 2,155.64
  4. Step 4: Simplify right side
    3,275.12x = 9,736,378.16
  5. Step 5: Solve for x
    x = 9,736,378.16/3,275.12
  6. Step 6: Final answer
    x = 2,972.84

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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.