Home / 5,621.60-8,432.68-1,923.68

Finding the Fourth Proportional to 5,621.60, 8,432.68 and 1,923.68

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Solution

The fourth proportional to 5,621.60, 8,432.68 and 1,923.68 is: 2,885.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.60 : 8,432.68 = 1,923.68 : x
  2. Step 2: Convert to fraction form
    5,621.60/8,432.68 = 1,923.68/x
  3. Step 3: Cross multiply
    5,621.60x = 8,432.68 × 1,923.68
  4. Step 4: Simplify right side
    5,621.60x = 16,221,777.86
  5. Step 5: Solve for x
    x = 16,221,777.86/5,621.60
  6. Step 6: Final answer
    x = 2,885.62

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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.