Home / 3,715.03-5,126.90-2,121.94

Finding the Fourth Proportional to 3,715.03, 5,126.90 and 2,121.94

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Solution

The fourth proportional to 3,715.03, 5,126.90 and 2,121.94 is: 2,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.03 : 5,126.90 = 2,121.94 : x
  2. Step 2: Convert to fraction form
    3,715.03/5,126.90 = 2,121.94/x
  3. Step 3: Cross multiply
    3,715.03x = 5,126.90 × 2,121.94
  4. Step 4: Simplify right side
    3,715.03x = 10,878,950.76
  5. Step 5: Solve for x
    x = 10,878,950.76/3,715.03
  6. Step 6: Final answer
    x = 2,928.36

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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.