Home / 1,564.38-2,157.03-1,268.73

Finding the Fourth Proportional to 1,564.38, 2,157.03 and 1,268.73

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Solution

The fourth proportional to 1,564.38, 2,157.03 and 1,268.73 is: 1,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.38 : 2,157.03 = 1,268.73 : x
  2. Step 2: Convert to fraction form
    1,564.38/2,157.03 = 1,268.73/x
  3. Step 3: Cross multiply
    1,564.38x = 2,157.03 × 1,268.73
  4. Step 4: Simplify right side
    1,564.38x = 2,736,688.67
  5. Step 5: Solve for x
    x = 2,736,688.67/1,564.38
  6. Step 6: Final answer
    x = 1,749.38

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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.