Home / 6,514.98-8,990.64-3,530.88

Finding the Fourth Proportional to 6,514.98, 8,990.64 and 3,530.88

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Solution

The fourth proportional to 6,514.98, 8,990.64 and 3,530.88 is: 4,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.98 : 8,990.64 = 3,530.88 : x
  2. Step 2: Convert to fraction form
    6,514.98/8,990.64 = 3,530.88/x
  3. Step 3: Cross multiply
    6,514.98x = 8,990.64 × 3,530.88
  4. Step 4: Simplify right side
    6,514.98x = 31,744,870.96
  5. Step 5: Solve for x
    x = 31,744,870.96/6,514.98
  6. Step 6: Final answer
    x = 4,872.60

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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.