Home / 2,973.12-4,458.12-1,328.76

Finding the Fourth Proportional to 2,973.12, 4,458.12 and 1,328.76

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Solution

The fourth proportional to 2,973.12, 4,458.12 and 1,328.76 is: 1,992.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.12 : 4,458.12 = 1,328.76 : x
  2. Step 2: Convert to fraction form
    2,973.12/4,458.12 = 1,328.76/x
  3. Step 3: Cross multiply
    2,973.12x = 4,458.12 × 1,328.76
  4. Step 4: Simplify right side
    2,973.12x = 5,923,771.53
  5. Step 5: Solve for x
    x = 5,923,771.53/2,973.12
  6. Step 6: Final answer
    x = 1,992.44

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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.