Home / 5,689.20-8,532.60-2,178.05

Finding the Fourth Proportional to 5,689.20, 8,532.60 and 2,178.05

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Solution

The fourth proportional to 5,689.20, 8,532.60 and 2,178.05 is: 3,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.20 : 8,532.60 = 2,178.05 : x
  2. Step 2: Convert to fraction form
    5,689.20/8,532.60 = 2,178.05/x
  3. Step 3: Cross multiply
    5,689.20x = 8,532.60 × 2,178.05
  4. Step 4: Simplify right side
    5,689.20x = 18,584,386.77
  5. Step 5: Solve for x
    x = 18,584,386.77/5,689.20
  6. Step 6: Final answer
    x = 3,266.61

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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.