Home / 2,874.34-4,312.32-926.70

Finding the Fourth Proportional to 2,874.34, 4,312.32 and 926.70

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Solution

The fourth proportional to 2,874.34, 4,312.32 and 926.70 is: 1,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.34 : 4,312.32 = 926.70 : x
  2. Step 2: Convert to fraction form
    2,874.34/4,312.32 = 926.70/x
  3. Step 3: Cross multiply
    2,874.34x = 4,312.32 × 926.70
  4. Step 4: Simplify right side
    2,874.34x = 3,996,226.94
  5. Step 5: Solve for x
    x = 3,996,226.94/2,874.34
  6. Step 6: Final answer
    x = 1,390.31

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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.