Home / 5,475.28-8,214.32-1,579.72

Finding the Fourth Proportional to 5,475.28, 8,214.32 and 1,579.72

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Solution

The fourth proportional to 5,475.28, 8,214.32 and 1,579.72 is: 2,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.28 : 8,214.32 = 1,579.72 : x
  2. Step 2: Convert to fraction form
    5,475.28/8,214.32 = 1,579.72/x
  3. Step 3: Cross multiply
    5,475.28x = 8,214.32 × 1,579.72
  4. Step 4: Simplify right side
    5,475.28x = 12,976,325.59
  5. Step 5: Solve for x
    x = 12,976,325.59/5,475.28
  6. Step 6: Final answer
    x = 2,369.98

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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.