Home / 6,514.15-8,989.49-3,529.90

Finding the Fourth Proportional to 6,514.15, 8,989.49 and 3,529.90

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Solution

The fourth proportional to 6,514.15, 8,989.49 and 3,529.90 is: 4,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.15 : 8,989.49 = 3,529.90 : x
  2. Step 2: Convert to fraction form
    6,514.15/8,989.49 = 3,529.90/x
  3. Step 3: Cross multiply
    6,514.15x = 8,989.49 × 3,529.90
  4. Step 4: Simplify right side
    6,514.15x = 31,732,005.58
  5. Step 5: Solve for x
    x = 31,732,005.58/6,514.15
  6. Step 6: Final answer
    x = 4,871.25

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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.