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Finding the Fourth Proportional to 2,997.03, 4,495.55 and 805.76

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Solution

The fourth proportional to 2,997.03, 4,495.55 and 805.76 is: 1,208.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.03 : 4,495.55 = 805.76 : x
  2. Step 2: Convert to fraction form
    2,997.03/4,495.55 = 805.76/x
  3. Step 3: Cross multiply
    2,997.03x = 4,495.55 × 805.76
  4. Step 4: Simplify right side
    2,997.03x = 3,622,341.58
  5. Step 5: Solve for x
    x = 3,622,341.58/2,997.03
  6. Step 6: Final answer
    x = 1,208.64

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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.