Home / 1,627.09-2,245.91-1,207.31

Finding the Fourth Proportional to 1,627.09, 2,245.91 and 1,207.31

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Solution

The fourth proportional to 1,627.09, 2,245.91 and 1,207.31 is: 1,666.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.09 : 2,245.91 = 1,207.31 : x
  2. Step 2: Convert to fraction form
    1,627.09/2,245.91 = 1,207.31/x
  3. Step 3: Cross multiply
    1,627.09x = 2,245.91 × 1,207.31
  4. Step 4: Simplify right side
    1,627.09x = 2,711,492.34
  5. Step 5: Solve for x
    x = 2,711,492.34/1,627.09
  6. Step 6: Final answer
    x = 1,666.47

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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.