Home / 10,285.19-15,428.39-2,890.23

Finding the Fourth Proportional to 10,285.19, 15,428.39 and 2,890.23

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Solution

The fourth proportional to 10,285.19, 15,428.39 and 2,890.23 is: 4,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.19 : 15,428.39 = 2,890.23 : x
  2. Step 2: Convert to fraction form
    10,285.19/15,428.39 = 2,890.23/x
  3. Step 3: Cross multiply
    10,285.19x = 15,428.39 × 2,890.23
  4. Step 4: Simplify right side
    10,285.19x = 44,591,516.54
  5. Step 5: Solve for x
    x = 44,591,516.54/10,285.19
  6. Step 6: Final answer
    x = 4,335.51

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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.