Home / 2,912.80-4,370.28-1,182.64

Finding the Fourth Proportional to 2,912.80, 4,370.28 and 1,182.64

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Solution

The fourth proportional to 2,912.80, 4,370.28 and 1,182.64 is: 1,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.80 : 4,370.28 = 1,182.64 : x
  2. Step 2: Convert to fraction form
    2,912.80/4,370.28 = 1,182.64/x
  3. Step 3: Cross multiply
    2,912.80x = 4,370.28 × 1,182.64
  4. Step 4: Simplify right side
    2,912.80x = 5,168,467.94
  5. Step 5: Solve for x
    x = 5,168,467.94/2,912.80
  6. Step 6: Final answer
    x = 1,774.40

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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.