Home / 5,514.40-7,609.74-3,156.39

Finding the Fourth Proportional to 5,514.40, 7,609.74 and 3,156.39

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Solution

The fourth proportional to 5,514.40, 7,609.74 and 3,156.39 is: 4,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.40 : 7,609.74 = 3,156.39 : x
  2. Step 2: Convert to fraction form
    5,514.40/7,609.74 = 3,156.39/x
  3. Step 3: Cross multiply
    5,514.40x = 7,609.74 × 3,156.39
  4. Step 4: Simplify right side
    5,514.40x = 24,019,307.24
  5. Step 5: Solve for x
    x = 24,019,307.24/5,514.40
  6. Step 6: Final answer
    x = 4,355.74

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Half scale
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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.