Home / 1,206.54-1,660.26-1,174.32

Finding the Fourth Proportional to 1,206.54, 1,660.26 and 1,174.32

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Solution

The fourth proportional to 1,206.54, 1,660.26 and 1,174.32 is: 1,615.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.54 : 1,660.26 = 1,174.32 : x
  2. Step 2: Convert to fraction form
    1,206.54/1,660.26 = 1,174.32/x
  3. Step 3: Cross multiply
    1,206.54x = 1,660.26 × 1,174.32
  4. Step 4: Simplify right side
    1,206.54x = 1,949,676.52
  5. Step 5: Solve for x
    x = 1,949,676.52/1,206.54
  6. Step 6: Final answer
    x = 1,615.92

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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.