Home / 7,937.28-10,940.70-5,384.22

Finding the Fourth Proportional to 7,937.28, 10,940.70 and 5,384.22

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Solution

The fourth proportional to 7,937.28, 10,940.70 and 5,384.22 is: 7,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.28 : 10,940.70 = 5,384.22 : x
  2. Step 2: Convert to fraction form
    7,937.28/10,940.70 = 5,384.22/x
  3. Step 3: Cross multiply
    7,937.28x = 10,940.70 × 5,384.22
  4. Step 4: Simplify right side
    7,937.28x = 58,907,135.75
  5. Step 5: Solve for x
    x = 58,907,135.75/7,937.28
  6. Step 6: Final answer
    x = 7,421.58

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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.