Home / 7,743.12-10,685.36-4,385.88

Finding the Fourth Proportional to 7,743.12, 10,685.36 and 4,385.88

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Solution

The fourth proportional to 7,743.12, 10,685.36 and 4,385.88 is: 6,052.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.12 : 10,685.36 = 4,385.88 : x
  2. Step 2: Convert to fraction form
    7,743.12/10,685.36 = 4,385.88/x
  3. Step 3: Cross multiply
    7,743.12x = 10,685.36 × 4,385.88
  4. Step 4: Simplify right side
    7,743.12x = 46,864,706.72
  5. Step 5: Solve for x
    x = 46,864,706.72/7,743.12
  6. Step 6: Final answer
    x = 6,052.43

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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.