Home / 2,764.96-4,148.88-1,122.72

Finding the Fourth Proportional to 2,764.96, 4,148.88 and 1,122.72

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Solution

The fourth proportional to 2,764.96, 4,148.88 and 1,122.72 is: 1,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.96 : 4,148.88 = 1,122.72 : x
  2. Step 2: Convert to fraction form
    2,764.96/4,148.88 = 1,122.72/x
  3. Step 3: Cross multiply
    2,764.96x = 4,148.88 × 1,122.72
  4. Step 4: Simplify right side
    2,764.96x = 4,658,030.55
  5. Step 5: Solve for x
    x = 4,658,030.55/2,764.96
  6. Step 6: Final answer
    x = 1,684.66

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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.