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Finding the Fourth Proportional to 5,646.28, 7,790.82 and 3,162.28

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Solution

The fourth proportional to 5,646.28, 7,790.82 and 3,162.28 is: 4,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,646.28 : 7,790.82 = 3,162.28 : x
  2. Step 2: Convert to fraction form
    5,646.28/7,790.82 = 3,162.28/x
  3. Step 3: Cross multiply
    5,646.28x = 7,790.82 × 3,162.28
  4. Step 4: Simplify right side
    5,646.28x = 24,636,754.27
  5. Step 5: Solve for x
    x = 24,636,754.27/5,646.28
  6. Step 6: Final answer
    x = 4,363.36

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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.