Home / 2,976.64-4,465.36-1,028.72

Finding the Fourth Proportional to 2,976.64, 4,465.36 and 1,028.72

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Solution

The fourth proportional to 2,976.64, 4,465.36 and 1,028.72 is: 1,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.64 : 4,465.36 = 1,028.72 : x
  2. Step 2: Convert to fraction form
    2,976.64/4,465.36 = 1,028.72/x
  3. Step 3: Cross multiply
    2,976.64x = 4,465.36 × 1,028.72
  4. Step 4: Simplify right side
    2,976.64x = 4,593,605.14
  5. Step 5: Solve for x
    x = 4,593,605.14/2,976.64
  6. Step 6: Final answer
    x = 1,543.22

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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.