Home / 7,841.28-10,821-4,304.88

Finding the Fourth Proportional to 7,841.28, 10,821 and 4,304.88

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Solution

The fourth proportional to 7,841.28, 10,821 and 4,304.88 is: 5,940.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841.28 : 10,821 = 4,304.88 : x
  2. Step 2: Convert to fraction form
    7,841.28/10,821 = 4,304.88/x
  3. Step 3: Cross multiply
    7,841.28x = 10,821 × 4,304.88
  4. Step 4: Simplify right side
    7,841.28x = 46,583,106.48
  5. Step 5: Solve for x
    x = 46,583,106.48/7,841.28
  6. Step 6: Final answer
    x = 5,940.75

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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.