Home / 4,920.48-7,374.24-1,997.20

Finding the Fourth Proportional to 4,920.48, 7,374.24 and 1,997.20

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Solution

The fourth proportional to 4,920.48, 7,374.24 and 1,997.20 is: 2,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.48 : 7,374.24 = 1,997.20 : x
  2. Step 2: Convert to fraction form
    4,920.48/7,374.24 = 1,997.20/x
  3. Step 3: Cross multiply
    4,920.48x = 7,374.24 × 1,997.20
  4. Step 4: Simplify right side
    4,920.48x = 14,727,832.13
  5. Step 5: Solve for x
    x = 14,727,832.13/4,920.48
  6. Step 6: Final answer
    x = 2,993.17

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1.5x scale

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.