Home / 5,431.28-8,107.64-5,025.48

Finding the Fourth Proportional to 5,431.28, 8,107.64 and 5,025.48

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Solution

The fourth proportional to 5,431.28, 8,107.64 and 5,025.48 is: 7,501.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.28 : 8,107.64 = 5,025.48 : x
  2. Step 2: Convert to fraction form
    5,431.28/8,107.64 = 5,025.48/x
  3. Step 3: Cross multiply
    5,431.28x = 8,107.64 × 5,025.48
  4. Step 4: Simplify right side
    5,431.28x = 40,744,782.67
  5. Step 5: Solve for x
    x = 40,744,782.67/5,431.28
  6. Step 6: Final answer
    x = 7,501.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.