Home / 5,689.45-8,532.98-2,178.28

Finding the Fourth Proportional to 5,689.45, 8,532.98 and 2,178.28

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Solution

The fourth proportional to 5,689.45, 8,532.98 and 2,178.28 is: 3,266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.45 : 8,532.98 = 2,178.28 : x
  2. Step 2: Convert to fraction form
    5,689.45/8,532.98 = 2,178.28/x
  3. Step 3: Cross multiply
    5,689.45x = 8,532.98 × 2,178.28
  4. Step 4: Simplify right side
    5,689.45x = 18,587,219.67
  5. Step 5: Solve for x
    x = 18,587,219.67/5,689.45
  6. Step 6: Final answer
    x = 3,266.96

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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.