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Finding the Fourth Proportional to 5,630.29, 7,769.46 and 3,392.89

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Solution

The fourth proportional to 5,630.29, 7,769.46 and 3,392.89 is: 4,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.29 : 7,769.46 = 3,392.89 : x
  2. Step 2: Convert to fraction form
    5,630.29/7,769.46 = 3,392.89/x
  3. Step 3: Cross multiply
    5,630.29x = 7,769.46 × 3,392.89
  4. Step 4: Simplify right side
    5,630.29x = 26,360,923.14
  5. Step 5: Solve for x
    x = 26,360,923.14/5,630.29
  6. Step 6: Final answer
    x = 4,681.98

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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.