Home / 5,660.21-8,488.39-1,961.58

Finding the Fourth Proportional to 5,660.21, 8,488.39 and 1,961.58

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Solution

The fourth proportional to 5,660.21, 8,488.39 and 1,961.58 is: 2,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.21 : 8,488.39 = 1,961.58 : x
  2. Step 2: Convert to fraction form
    5,660.21/8,488.39 = 1,961.58/x
  3. Step 3: Cross multiply
    5,660.21x = 8,488.39 × 1,961.58
  4. Step 4: Simplify right side
    5,660.21x = 16,650,618.52
  5. Step 5: Solve for x
    x = 16,650,618.52/5,660.21
  6. Step 6: Final answer
    x = 2,941.70

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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.