Home / 2,289.96-3,160.32-1,295.34

Finding the Fourth Proportional to 2,289.96, 3,160.32 and 1,295.34

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Solution

The fourth proportional to 2,289.96, 3,160.32 and 1,295.34 is: 1,787.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.96 : 3,160.32 = 1,295.34 : x
  2. Step 2: Convert to fraction form
    2,289.96/3,160.32 = 1,295.34/x
  3. Step 3: Cross multiply
    2,289.96x = 3,160.32 × 1,295.34
  4. Step 4: Simplify right side
    2,289.96x = 4,093,688.91
  5. Step 5: Solve for x
    x = 4,093,688.91/2,289.96
  6. Step 6: Final answer
    x = 1,787.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.