Home / 5,660.40-8,487.58-1,961.68

Finding the Fourth Proportional to 5,660.40, 8,487.58 and 1,961.68

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Solution

The fourth proportional to 5,660.40, 8,487.58 and 1,961.68 is: 2,941.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.40 : 8,487.58 = 1,961.68 : x
  2. Step 2: Convert to fraction form
    5,660.40/8,487.58 = 1,961.68/x
  3. Step 3: Cross multiply
    5,660.40x = 8,487.58 × 1,961.68
  4. Step 4: Simplify right side
    5,660.40x = 16,649,915.93
  5. Step 5: Solve for x
    x = 16,649,915.93/5,660.40
  6. Step 6: Final answer
    x = 2,941.47

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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.