Home / 5,490.80-8,225.32-2,887.28

Finding the Fourth Proportional to 5,490.80, 8,225.32 and 2,887.28

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Solution

The fourth proportional to 5,490.80, 8,225.32 and 2,887.28 is: 4,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.80 : 8,225.32 = 2,887.28 : x
  2. Step 2: Convert to fraction form
    5,490.80/8,225.32 = 2,887.28/x
  3. Step 3: Cross multiply
    5,490.80x = 8,225.32 × 2,887.28
  4. Step 4: Simplify right side
    5,490.80x = 23,748,801.93
  5. Step 5: Solve for x
    x = 23,748,801.93/5,490.80
  6. Step 6: Final answer
    x = 4,325.20

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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.