Home / 1,844.78-2,767.10-458.10

Finding the Fourth Proportional to 1,844.78, 2,767.10 and 458.10

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Solution

The fourth proportional to 1,844.78, 2,767.10 and 458.10 is: 687.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.78 : 2,767.10 = 458.10 : x
  2. Step 2: Convert to fraction form
    1,844.78/2,767.10 = 458.10/x
  3. Step 3: Cross multiply
    1,844.78x = 2,767.10 × 458.10
  4. Step 4: Simplify right side
    1,844.78x = 1,267,608.51
  5. Step 5: Solve for x
    x = 1,267,608.51/1,844.78
  6. Step 6: Final answer
    x = 687.13

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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.