Home / 1,672.09-2,508.99-1,117.18

Finding the Fourth Proportional to 1,672.09, 2,508.99 and 1,117.18

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Solution

The fourth proportional to 1,672.09, 2,508.99 and 1,117.18 is: 1,676.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.09 : 2,508.99 = 1,117.18 : x
  2. Step 2: Convert to fraction form
    1,672.09/2,508.99 = 1,117.18/x
  3. Step 3: Cross multiply
    1,672.09x = 2,508.99 × 1,117.18
  4. Step 4: Simplify right side
    1,672.09x = 2,802,987.18
  5. Step 5: Solve for x
    x = 2,802,987.18/1,672.09
  6. Step 6: Final answer
    x = 1,676.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.