Home / 2,202.48-3,039.42-1,207.80

Finding the Fourth Proportional to 2,202.48, 3,039.42 and 1,207.80

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Solution

The fourth proportional to 2,202.48, 3,039.42 and 1,207.80 is: 1,666.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.48 : 3,039.42 = 1,207.80 : x
  2. Step 2: Convert to fraction form
    2,202.48/3,039.42 = 1,207.80/x
  3. Step 3: Cross multiply
    2,202.48x = 3,039.42 × 1,207.80
  4. Step 4: Simplify right side
    2,202.48x = 3,671,011.48
  5. Step 5: Solve for x
    x = 3,671,011.48/2,202.48
  6. Step 6: Final answer
    x = 1,666.76

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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.