Home / 5,135.05-7,085.95-2,896.84

Finding the Fourth Proportional to 5,135.05, 7,085.95 and 2,896.84

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Solution

The fourth proportional to 5,135.05, 7,085.95 and 2,896.84 is: 3,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.05 : 7,085.95 = 2,896.84 : x
  2. Step 2: Convert to fraction form
    5,135.05/7,085.95 = 2,896.84/x
  3. Step 3: Cross multiply
    5,135.05x = 7,085.95 × 2,896.84
  4. Step 4: Simplify right side
    5,135.05x = 20,526,863.40
  5. Step 5: Solve for x
    x = 20,526,863.40/5,135.05
  6. Step 6: Final answer
    x = 3,997.40

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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.