Home / 2,275.75-3,415.04-977.22

Finding the Fourth Proportional to 2,275.75, 3,415.04 and 977.22

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Solution

The fourth proportional to 2,275.75, 3,415.04 and 977.22 is: 1,466.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.75 : 3,415.04 = 977.22 : x
  2. Step 2: Convert to fraction form
    2,275.75/3,415.04 = 977.22/x
  3. Step 3: Cross multiply
    2,275.75x = 3,415.04 × 977.22
  4. Step 4: Simplify right side
    2,275.75x = 3,337,245.39
  5. Step 5: Solve for x
    x = 3,337,245.39/2,275.75
  6. Step 6: Final answer
    x = 1,466.44

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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.