Home / 6,514.55-8,990.06-3,530.37

Finding the Fourth Proportional to 6,514.55, 8,990.06 and 3,530.37

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Solution

The fourth proportional to 6,514.55, 8,990.06 and 3,530.37 is: 4,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.55 : 8,990.06 = 3,530.37 : x
  2. Step 2: Convert to fraction form
    6,514.55/8,990.06 = 3,530.37/x
  3. Step 3: Cross multiply
    6,514.55x = 8,990.06 × 3,530.37
  4. Step 4: Simplify right side
    6,514.55x = 31,738,238.12
  5. Step 5: Solve for x
    x = 31,738,238.12/6,514.55
  6. Step 6: Final answer
    x = 4,871.90

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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.