Home / 1,112.23-1,534.88-608.09

Finding the Fourth Proportional to 1,112.23, 1,534.88 and 608.09

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Solution

The fourth proportional to 1,112.23, 1,534.88 and 608.09 is: 839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.23 : 1,534.88 = 608.09 : x
  2. Step 2: Convert to fraction form
    1,112.23/1,534.88 = 608.09/x
  3. Step 3: Cross multiply
    1,112.23x = 1,534.88 × 608.09
  4. Step 4: Simplify right side
    1,112.23x = 933,345.18
  5. Step 5: Solve for x
    x = 933,345.18/1,112.23
  6. Step 6: Final answer
    x = 839.17

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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.