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Finding the Fourth Proportional to 1,840.64, 2,760.68 and 608.10

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Solution

The fourth proportional to 1,840.64, 2,760.68 and 608.10 is: 912.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.64 : 2,760.68 = 608.10 : x
  2. Step 2: Convert to fraction form
    1,840.64/2,760.68 = 608.10/x
  3. Step 3: Cross multiply
    1,840.64x = 2,760.68 × 608.10
  4. Step 4: Simplify right side
    1,840.64x = 1,678,769.51
  5. Step 5: Solve for x
    x = 1,678,769.51/1,840.64
  6. Step 6: Final answer
    x = 912.06

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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.