Home / 5,514.88-8,271.51-1,618.78

Finding the Fourth Proportional to 5,514.88, 8,271.51 and 1,618.78

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Solution

The fourth proportional to 5,514.88, 8,271.51 and 1,618.78 is: 2,427.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.88 : 8,271.51 = 1,618.78 : x
  2. Step 2: Convert to fraction form
    5,514.88/8,271.51 = 1,618.78/x
  3. Step 3: Cross multiply
    5,514.88x = 8,271.51 × 1,618.78
  4. Step 4: Simplify right side
    5,514.88x = 13,389,754.96
  5. Step 5: Solve for x
    x = 13,389,754.96/5,514.88
  6. Step 6: Final answer
    x = 2,427.93

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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.