Home / 1,091.24-1,505.46-625.16

Finding the Fourth Proportional to 1,091.24, 1,505.46 and 625.16

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Solution

The fourth proportional to 1,091.24, 1,505.46 and 625.16 is: 862.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091.24 : 1,505.46 = 625.16 : x
  2. Step 2: Convert to fraction form
    1,091.24/1,505.46 = 625.16/x
  3. Step 3: Cross multiply
    1,091.24x = 1,505.46 × 625.16
  4. Step 4: Simplify right side
    1,091.24x = 941,153.37
  5. Step 5: Solve for x
    x = 941,153.37/1,091.24
  6. Step 6: Final answer
    x = 862.46

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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.