Home / 5,490.24-7,579.80-3,397.20

Finding the Fourth Proportional to 5,490.24, 7,579.80 and 3,397.20

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Solution

The fourth proportional to 5,490.24, 7,579.80 and 3,397.20 is: 4,690.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.24 : 7,579.80 = 3,397.20 : x
  2. Step 2: Convert to fraction form
    5,490.24/7,579.80 = 3,397.20/x
  3. Step 3: Cross multiply
    5,490.24x = 7,579.80 × 3,397.20
  4. Step 4: Simplify right side
    5,490.24x = 25,750,096.56
  5. Step 5: Solve for x
    x = 25,750,096.56/5,490.24
  6. Step 6: Final answer
    x = 4,690.16

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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.