Home / 1,186.02-1,634.51-923.58

Finding the Fourth Proportional to 1,186.02, 1,634.51 and 923.58

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Solution

The fourth proportional to 1,186.02, 1,634.51 and 923.58 is: 1,272.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186.02 : 1,634.51 = 923.58 : x
  2. Step 2: Convert to fraction form
    1,186.02/1,634.51 = 923.58/x
  3. Step 3: Cross multiply
    1,186.02x = 1,634.51 × 923.58
  4. Step 4: Simplify right side
    1,186.02x = 1,509,603.05
  5. Step 5: Solve for x
    x = 1,509,603.05/1,186.02
  6. Step 6: Final answer
    x = 1,272.83

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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.