Home / 1,767.09-2,438.90-1,207.35

Finding the Fourth Proportional to 1,767.09, 2,438.90 and 1,207.35

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Solution

The fourth proportional to 1,767.09, 2,438.90 and 1,207.35 is: 1,666.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.09 : 2,438.90 = 1,207.35 : x
  2. Step 2: Convert to fraction form
    1,767.09/2,438.90 = 1,207.35/x
  3. Step 3: Cross multiply
    1,767.09x = 2,438.90 × 1,207.35
  4. Step 4: Simplify right side
    1,767.09x = 2,944,608.93
  5. Step 5: Solve for x
    x = 2,944,608.93/1,767.09
  6. Step 6: Final answer
    x = 1,666.36

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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.