Home / 5,109.98-7,679.68-2,514.74

Finding the Fourth Proportional to 5,109.98, 7,679.68 and 2,514.74

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Solution

The fourth proportional to 5,109.98, 7,679.68 and 2,514.74 is: 3,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.98 : 7,679.68 = 2,514.74 : x
  2. Step 2: Convert to fraction form
    5,109.98/7,679.68 = 2,514.74/x
  3. Step 3: Cross multiply
    5,109.98x = 7,679.68 × 2,514.74
  4. Step 4: Simplify right side
    5,109.98x = 19,312,398.48
  5. Step 5: Solve for x
    x = 19,312,398.48/5,109.98
  6. Step 6: Final answer
    x = 3,779.35

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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.