Home / 5,428.45-8,146.60-2,309.32

Finding the Fourth Proportional to 5,428.45, 8,146.60 and 2,309.32

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Solution

The fourth proportional to 5,428.45, 8,146.60 and 2,309.32 is: 3,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.45 : 8,146.60 = 2,309.32 : x
  2. Step 2: Convert to fraction form
    5,428.45/8,146.60 = 2,309.32/x
  3. Step 3: Cross multiply
    5,428.45x = 8,146.60 × 2,309.32
  4. Step 4: Simplify right side
    5,428.45x = 18,813,110.72
  5. Step 5: Solve for x
    x = 18,813,110.72/5,428.45
  6. Step 6: Final answer
    x = 3,465.65

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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.