Home / 2,902.26-4,005.48-1,908.36

Finding the Fourth Proportional to 2,902.26, 4,005.48 and 1,908.36

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Solution

The fourth proportional to 2,902.26, 4,005.48 and 1,908.36 is: 2,633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.26 : 4,005.48 = 1,908.36 : x
  2. Step 2: Convert to fraction form
    2,902.26/4,005.48 = 1,908.36/x
  3. Step 3: Cross multiply
    2,902.26x = 4,005.48 × 1,908.36
  4. Step 4: Simplify right side
    2,902.26x = 7,643,897.81
  5. Step 5: Solve for x
    x = 7,643,897.81/2,902.26
  6. Step 6: Final answer
    x = 2,633.77

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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.