Home / 1,948.09-2,687.48-1,202.08

Finding the Fourth Proportional to 1,948.09, 2,687.48 and 1,202.08

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Solution

The fourth proportional to 1,948.09, 2,687.48 and 1,202.08 is: 1,658.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.09 : 2,687.48 = 1,202.08 : x
  2. Step 2: Convert to fraction form
    1,948.09/2,687.48 = 1,202.08/x
  3. Step 3: Cross multiply
    1,948.09x = 2,687.48 × 1,202.08
  4. Step 4: Simplify right side
    1,948.09x = 3,230,552.52
  5. Step 5: Solve for x
    x = 3,230,552.52/1,948.09
  6. Step 6: Final answer
    x = 1,658.32

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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.