Home / 1,206.24-1,660.02-1,177.62

Finding the Fourth Proportional to 1,206.24, 1,660.02 and 1,177.62

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Solution

The fourth proportional to 1,206.24, 1,660.02 and 1,177.62 is: 1,620.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.24 : 1,660.02 = 1,177.62 : x
  2. Step 2: Convert to fraction form
    1,206.24/1,660.02 = 1,177.62/x
  3. Step 3: Cross multiply
    1,206.24x = 1,660.02 × 1,177.62
  4. Step 4: Simplify right side
    1,206.24x = 1,954,872.75
  5. Step 5: Solve for x
    x = 1,954,872.75/1,206.24
  6. Step 6: Final answer
    x = 1,620.63

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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.