Home / 1,606.25-2,208.10-1,381.36

Finding the Fourth Proportional to 1,606.25, 2,208.10 and 1,381.36

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Solution

The fourth proportional to 1,606.25, 2,208.10 and 1,381.36 is: 1,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.25 : 2,208.10 = 1,381.36 : x
  2. Step 2: Convert to fraction form
    1,606.25/2,208.10 = 1,381.36/x
  3. Step 3: Cross multiply
    1,606.25x = 2,208.10 × 1,381.36
  4. Step 4: Simplify right side
    1,606.25x = 3,050,169.98
  5. Step 5: Solve for x
    x = 3,050,169.98/1,606.25
  6. Step 6: Final answer
    x = 1,898.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.