Home / 6,516.68-8,990.58-4,279.79

Finding the Fourth Proportional to 6,516.68, 8,990.58 and 4,279.79

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Solution

The fourth proportional to 6,516.68, 8,990.58 and 4,279.79 is: 5,904.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.68 : 8,990.58 = 4,279.79 : x
  2. Step 2: Convert to fraction form
    6,516.68/8,990.58 = 4,279.79/x
  3. Step 3: Cross multiply
    6,516.68x = 8,990.58 × 4,279.79
  4. Step 4: Simplify right side
    6,516.68x = 38,477,816.85
  5. Step 5: Solve for x
    x = 38,477,816.85/6,516.68
  6. Step 6: Final answer
    x = 5,904.52

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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.