Home / 5,689.59-8,528.61-2,178.71

Finding the Fourth Proportional to 5,689.59, 8,528.61 and 2,178.71

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Solution

The fourth proportional to 5,689.59, 8,528.61 and 2,178.71 is: 3,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.59 : 8,528.61 = 2,178.71 : x
  2. Step 2: Convert to fraction form
    5,689.59/8,528.61 = 2,178.71/x
  3. Step 3: Cross multiply
    5,689.59x = 8,528.61 × 2,178.71
  4. Step 4: Simplify right side
    5,689.59x = 18,581,325.25
  5. Step 5: Solve for x
    x = 18,581,325.25/5,689.59
  6. Step 6: Final answer
    x = 3,265.85

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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.