Home / 5,821.50-8,732.82-1,871.76

Finding the Fourth Proportional to 5,821.50, 8,732.82 and 1,871.76

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Solution

The fourth proportional to 5,821.50, 8,732.82 and 1,871.76 is: 2,807.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.50 : 8,732.82 = 1,871.76 : x
  2. Step 2: Convert to fraction form
    5,821.50/8,732.82 = 1,871.76/x
  3. Step 3: Cross multiply
    5,821.50x = 8,732.82 × 1,871.76
  4. Step 4: Simplify right side
    5,821.50x = 16,345,743.16
  5. Step 5: Solve for x
    x = 16,345,743.16/5,821.50
  6. Step 6: Final answer
    x = 2,807.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.