Home / 1,112.24-1,534.90-608.10

Finding the Fourth Proportional to 1,112.24, 1,534.90 and 608.10

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Solution

The fourth proportional to 1,112.24, 1,534.90 and 608.10 is: 839.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.24 : 1,534.90 = 608.10 : x
  2. Step 2: Convert to fraction form
    1,112.24/1,534.90 = 608.10/x
  3. Step 3: Cross multiply
    1,112.24x = 1,534.90 × 608.10
  4. Step 4: Simplify right side
    1,112.24x = 933,373.49
  5. Step 5: Solve for x
    x = 933,373.49/1,112.24
  6. Step 6: Final answer
    x = 839.19

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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.