Home / 5,290.63-7,937.59-2,170.89

Finding the Fourth Proportional to 5,290.63, 7,937.59 and 2,170.89

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Solution

The fourth proportional to 5,290.63, 7,937.59 and 2,170.89 is: 3,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.63 : 7,937.59 = 2,170.89 : x
  2. Step 2: Convert to fraction form
    5,290.63/7,937.59 = 2,170.89/x
  3. Step 3: Cross multiply
    5,290.63x = 7,937.59 × 2,170.89
  4. Step 4: Simplify right side
    5,290.63x = 17,231,611.96
  5. Step 5: Solve for x
    x = 17,231,611.96/5,290.63
  6. Step 6: Final answer
    x = 3,257.01

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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.