Home / 2,918.23-4,025.28-1,962.73

Finding the Fourth Proportional to 2,918.23, 4,025.28 and 1,962.73

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Solution

The fourth proportional to 2,918.23, 4,025.28 and 1,962.73 is: 2,707.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.23 : 4,025.28 = 1,962.73 : x
  2. Step 2: Convert to fraction form
    2,918.23/4,025.28 = 1,962.73/x
  3. Step 3: Cross multiply
    2,918.23x = 4,025.28 × 1,962.73
  4. Step 4: Simplify right side
    2,918.23x = 7,900,537.81
  5. Step 5: Solve for x
    x = 7,900,537.81/2,918.23
  6. Step 6: Final answer
    x = 2,707.31

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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.