Home / 5,490.32-8,237.31-1,792.70

Finding the Fourth Proportional to 5,490.32, 8,237.31 and 1,792.70

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Solution

The fourth proportional to 5,490.32, 8,237.31 and 1,792.70 is: 2,689.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.32 : 8,237.31 = 1,792.70 : x
  2. Step 2: Convert to fraction form
    5,490.32/8,237.31 = 1,792.70/x
  3. Step 3: Cross multiply
    5,490.32x = 8,237.31 × 1,792.70
  4. Step 4: Simplify right side
    5,490.32x = 14,767,025.64
  5. Step 5: Solve for x
    x = 14,767,025.64/5,490.32
  6. Step 6: Final answer
    x = 2,689.65

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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.