Home / 5,126.09-7,688.73-2,005.50

Finding the Fourth Proportional to 5,126.09, 7,688.73 and 2,005.50

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Solution

The fourth proportional to 5,126.09, 7,688.73 and 2,005.50 is: 3,008.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.09 : 7,688.73 = 2,005.50 : x
  2. Step 2: Convert to fraction form
    5,126.09/7,688.73 = 2,005.50/x
  3. Step 3: Cross multiply
    5,126.09x = 7,688.73 × 2,005.50
  4. Step 4: Simplify right side
    5,126.09x = 15,419,748.02
  5. Step 5: Solve for x
    x = 15,419,748.02/5,126.09
  6. Step 6: Final answer
    x = 3,008.09

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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.