Home / 1,642.30-2,463.47-1,090.54

Finding the Fourth Proportional to 1,642.30, 2,463.47 and 1,090.54

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Solution

The fourth proportional to 1,642.30, 2,463.47 and 1,090.54 is: 1,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.30 : 2,463.47 = 1,090.54 : x
  2. Step 2: Convert to fraction form
    1,642.30/2,463.47 = 1,090.54/x
  3. Step 3: Cross multiply
    1,642.30x = 2,463.47 × 1,090.54
  4. Step 4: Simplify right side
    1,642.30x = 2,686,512.57
  5. Step 5: Solve for x
    x = 2,686,512.57/1,642.30
  6. Step 6: Final answer
    x = 1,635.82

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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.