Home / 7,102.72-10,654.07-1,908.59

Finding the Fourth Proportional to 7,102.72, 10,654.07 and 1,908.59

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Solution

The fourth proportional to 7,102.72, 10,654.07 and 1,908.59 is: 2,862.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.72 : 10,654.07 = 1,908.59 : x
  2. Step 2: Convert to fraction form
    7,102.72/10,654.07 = 1,908.59/x
  3. Step 3: Cross multiply
    7,102.72x = 10,654.07 × 1,908.59
  4. Step 4: Simplify right side
    7,102.72x = 20,334,282.87
  5. Step 5: Solve for x
    x = 20,334,282.87/7,102.72
  6. Step 6: Final answer
    x = 2,862.89

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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.