Home / 5,685.30-8,528.34-1,988.46

Finding the Fourth Proportional to 5,685.30, 8,528.34 and 1,988.46

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Solution

The fourth proportional to 5,685.30, 8,528.34 and 1,988.46 is: 2,982.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.30 : 8,528.34 = 1,988.46 : x
  2. Step 2: Convert to fraction form
    5,685.30/8,528.34 = 1,988.46/x
  3. Step 3: Cross multiply
    5,685.30x = 8,528.34 × 1,988.46
  4. Step 4: Simplify right side
    5,685.30x = 16,958,262.96
  5. Step 5: Solve for x
    x = 16,958,262.96/5,685.30
  6. Step 6: Final answer
    x = 2,982.83

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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.