Home / 4,715.14-7,071.48-1,940.28

Finding the Fourth Proportional to 4,715.14, 7,071.48 and 1,940.28

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Solution

The fourth proportional to 4,715.14, 7,071.48 and 1,940.28 is: 2,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.14 : 7,071.48 = 1,940.28 : x
  2. Step 2: Convert to fraction form
    4,715.14/7,071.48 = 1,940.28/x
  3. Step 3: Cross multiply
    4,715.14x = 7,071.48 × 1,940.28
  4. Step 4: Simplify right side
    4,715.14x = 13,720,651.21
  5. Step 5: Solve for x
    x = 13,720,651.21/4,715.14
  6. Step 6: Final answer
    x = 2,909.91

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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.