Home / 1,232.40-1,849.38-655.68

Finding the Fourth Proportional to 1,232.40, 1,849.38 and 655.68

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Solution

The fourth proportional to 1,232.40, 1,849.38 and 655.68 is: 983.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.40 : 1,849.38 = 655.68 : x
  2. Step 2: Convert to fraction form
    1,232.40/1,849.38 = 655.68/x
  3. Step 3: Cross multiply
    1,232.40x = 1,849.38 × 655.68
  4. Step 4: Simplify right side
    1,232.40x = 1,212,601.48
  5. Step 5: Solve for x
    x = 1,212,601.48/1,232.40
  6. Step 6: Final answer
    x = 983.93

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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.