Home / 5,688.70-8,532.29-1,990.60

Finding the Fourth Proportional to 5,688.70, 8,532.29 and 1,990.60

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Solution

The fourth proportional to 5,688.70, 8,532.29 and 1,990.60 is: 2,985.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.70 : 8,532.29 = 1,990.60 : x
  2. Step 2: Convert to fraction form
    5,688.70/8,532.29 = 1,990.60/x
  3. Step 3: Cross multiply
    5,688.70x = 8,532.29 × 1,990.60
  4. Step 4: Simplify right side
    5,688.70x = 16,984,360.12
  5. Step 5: Solve for x
    x = 16,984,360.12/5,688.70
  6. Step 6: Final answer
    x = 2,985.63

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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.