Home / 1,620.24-2,236.08-1,266.48

Finding the Fourth Proportional to 1,620.24, 2,236.08 and 1,266.48

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Solution

The fourth proportional to 1,620.24, 2,236.08 and 1,266.48 is: 1,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.24 : 2,236.08 = 1,266.48 : x
  2. Step 2: Convert to fraction form
    1,620.24/2,236.08 = 1,266.48/x
  3. Step 3: Cross multiply
    1,620.24x = 2,236.08 × 1,266.48
  4. Step 4: Simplify right side
    1,620.24x = 2,831,950.60
  5. Step 5: Solve for x
    x = 2,831,950.60/1,620.24
  6. Step 6: Final answer
    x = 1,747.86

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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.