Home / 6,514.12-8,989.62-3,719.80

Finding the Fourth Proportional to 6,514.12, 8,989.62 and 3,719.80

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Solution

The fourth proportional to 6,514.12, 8,989.62 and 3,719.80 is: 5,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.12 : 8,989.62 = 3,719.80 : x
  2. Step 2: Convert to fraction form
    6,514.12/8,989.62 = 3,719.80/x
  3. Step 3: Cross multiply
    6,514.12x = 8,989.62 × 3,719.80
  4. Step 4: Simplify right side
    6,514.12x = 33,439,588.48
  5. Step 5: Solve for x
    x = 33,439,588.48/6,514.12
  6. Step 6: Final answer
    x = 5,133.40

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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.