Home / 6,514.64-8,990.22-3,530.45

Finding the Fourth Proportional to 6,514.64, 8,990.22 and 3,530.45

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Solution

The fourth proportional to 6,514.64, 8,990.22 and 3,530.45 is: 4,872.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.64 : 8,990.22 = 3,530.45 : x
  2. Step 2: Convert to fraction form
    6,514.64/8,990.22 = 3,530.45/x
  3. Step 3: Cross multiply
    6,514.64x = 8,990.22 × 3,530.45
  4. Step 4: Simplify right side
    6,514.64x = 31,739,527.02
  5. Step 5: Solve for x
    x = 31,739,527.02/6,514.64
  6. Step 6: Final answer
    x = 4,872.03

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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.