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Finding the Fourth Proportional to 2,762.56, 3,812.16 and 1,832.32

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Solution

The fourth proportional to 2,762.56, 3,812.16 and 1,832.32 is: 2,528.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.56 : 3,812.16 = 1,832.32 : x
  2. Step 2: Convert to fraction form
    2,762.56/3,812.16 = 1,832.32/x
  3. Step 3: Cross multiply
    2,762.56x = 3,812.16 × 1,832.32
  4. Step 4: Simplify right side
    2,762.56x = 6,985,097.01
  5. Step 5: Solve for x
    x = 6,985,097.01/2,762.56
  6. Step 6: Final answer
    x = 2,528.49

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1.5x scale

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.