Home / 1,628.53-2,246.56-998.85

Finding the Fourth Proportional to 1,628.53, 2,246.56 and 998.85

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Solution

The fourth proportional to 1,628.53, 2,246.56 and 998.85 is: 1,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.53 : 2,246.56 = 998.85 : x
  2. Step 2: Convert to fraction form
    1,628.53/2,246.56 = 998.85/x
  3. Step 3: Cross multiply
    1,628.53x = 2,246.56 × 998.85
  4. Step 4: Simplify right side
    1,628.53x = 2,243,976.46
  5. Step 5: Solve for x
    x = 2,243,976.46/1,628.53
  6. Step 6: Final answer
    x = 1,377.92

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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.