Home / 5,300.80-7,956.96-4,212.16

Finding the Fourth Proportional to 5,300.80, 7,956.96 and 4,212.16

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Solution

The fourth proportional to 5,300.80, 7,956.96 and 4,212.16 is: 6,322.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,300.80 : 7,956.96 = 4,212.16 : x
  2. Step 2: Convert to fraction form
    5,300.80/7,956.96 = 4,212.16/x
  3. Step 3: Cross multiply
    5,300.80x = 7,956.96 × 4,212.16
  4. Step 4: Simplify right side
    5,300.80x = 33,515,988.63
  5. Step 5: Solve for x
    x = 33,515,988.63/5,300.80
  6. Step 6: Final answer
    x = 6,322.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.