Home / 5,630.43-7,769.84-3,112.36

Finding the Fourth Proportional to 5,630.43, 7,769.84 and 3,112.36

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Solution

The fourth proportional to 5,630.43, 7,769.84 and 3,112.36 is: 4,294.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.43 : 7,769.84 = 3,112.36 : x
  2. Step 2: Convert to fraction form
    5,630.43/7,769.84 = 3,112.36/x
  3. Step 3: Cross multiply
    5,630.43x = 7,769.84 × 3,112.36
  4. Step 4: Simplify right side
    5,630.43x = 24,182,539.22
  5. Step 5: Solve for x
    x = 24,182,539.22/5,630.43
  6. Step 6: Final answer
    x = 4,294.97

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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.