Home / 5,688.84-8,532.57-1,990.80

Finding the Fourth Proportional to 5,688.84, 8,532.57 and 1,990.80

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Solution

The fourth proportional to 5,688.84, 8,532.57 and 1,990.80 is: 2,985.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.84 : 8,532.57 = 1,990.80 : x
  2. Step 2: Convert to fraction form
    5,688.84/8,532.57 = 1,990.80/x
  3. Step 3: Cross multiply
    5,688.84x = 8,532.57 × 1,990.80
  4. Step 4: Simplify right side
    5,688.84x = 16,986,640.36
  5. Step 5: Solve for x
    x = 16,986,640.36/5,688.84
  6. Step 6: Final answer
    x = 2,985.96

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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.