Home / 2,202.09-3,038.87-1,207.32

Finding the Fourth Proportional to 2,202.09, 3,038.87 and 1,207.32

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Solution

The fourth proportional to 2,202.09, 3,038.87 and 1,207.32 is: 1,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.09 : 3,038.87 = 1,207.32 : x
  2. Step 2: Convert to fraction form
    2,202.09/3,038.87 = 1,207.32/x
  3. Step 3: Cross multiply
    2,202.09x = 3,038.87 × 1,207.32
  4. Step 4: Simplify right side
    2,202.09x = 3,668,882.49
  5. Step 5: Solve for x
    x = 3,668,882.49/2,202.09
  6. Step 6: Final answer
    x = 1,666.09

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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.