Home / 2,938.34-4,405.92-1,292.96

Finding the Fourth Proportional to 2,938.34, 4,405.92 and 1,292.96

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Solution

The fourth proportional to 2,938.34, 4,405.92 and 1,292.96 is: 1,938.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.34 : 4,405.92 = 1,292.96 : x
  2. Step 2: Convert to fraction form
    2,938.34/4,405.92 = 1,292.96/x
  3. Step 3: Cross multiply
    2,938.34x = 4,405.92 × 1,292.96
  4. Step 4: Simplify right side
    2,938.34x = 5,696,678.32
  5. Step 5: Solve for x
    x = 5,696,678.32/2,938.34
  6. Step 6: Final answer
    x = 1,938.74

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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.