Home / 2,918.22-4,023.90-2,287.62

Finding the Fourth Proportional to 2,918.22, 4,023.90 and 2,287.62

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Solution

The fourth proportional to 2,918.22, 4,023.90 and 2,287.62 is: 3,154.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.22 : 4,023.90 = 2,287.62 : x
  2. Step 2: Convert to fraction form
    2,918.22/4,023.90 = 2,287.62/x
  3. Step 3: Cross multiply
    2,918.22x = 4,023.90 × 2,287.62
  4. Step 4: Simplify right side
    2,918.22x = 9,205,154.12
  5. Step 5: Solve for x
    x = 9,205,154.12/2,918.22
  6. Step 6: Final answer
    x = 3,154.37

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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.