Home / 7,940.40-10,951.68-5,141.04

Finding the Fourth Proportional to 7,940.40, 10,951.68 and 5,141.04

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Solution

The fourth proportional to 7,940.40, 10,951.68 and 5,141.04 is: 7,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.40 : 10,951.68 = 5,141.04 : x
  2. Step 2: Convert to fraction form
    7,940.40/10,951.68 = 5,141.04/x
  3. Step 3: Cross multiply
    7,940.40x = 10,951.68 × 5,141.04
  4. Step 4: Simplify right side
    7,940.40x = 56,303,024.95
  5. Step 5: Solve for x
    x = 56,303,024.95/7,940.40
  6. Step 6: Final answer
    x = 7,090.70

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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.