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Finding the Fourth Proportional to 4,490.16, 6,741.48 and 2,940.72

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Solution

The fourth proportional to 4,490.16, 6,741.48 and 2,940.72 is: 4,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,490.16 : 6,741.48 = 2,940.72 : x
  2. Step 2: Convert to fraction form
    4,490.16/6,741.48 = 2,940.72/x
  3. Step 3: Cross multiply
    4,490.16x = 6,741.48 × 2,940.72
  4. Step 4: Simplify right side
    4,490.16x = 19,824,805.07
  5. Step 5: Solve for x
    x = 19,824,805.07/4,490.16
  6. Step 6: Final answer
    x = 4,415.17

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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.