Home / 5,871.80-8,808.46-1,921.70

Finding the Fourth Proportional to 5,871.80, 8,808.46 and 1,921.70

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Solution

The fourth proportional to 5,871.80, 8,808.46 and 1,921.70 is: 2,882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.80 : 8,808.46 = 1,921.70 : x
  2. Step 2: Convert to fraction form
    5,871.80/8,808.46 = 1,921.70/x
  3. Step 3: Cross multiply
    5,871.80x = 8,808.46 × 1,921.70
  4. Step 4: Simplify right side
    5,871.80x = 16,927,217.58
  5. Step 5: Solve for x
    x = 16,927,217.58/5,871.80
  6. Step 6: Final answer
    x = 2,882.80

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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.