Home / 1,395.13-2,091.61-625.09

Finding the Fourth Proportional to 1,395.13, 2,091.61 and 625.09

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Solution

The fourth proportional to 1,395.13, 2,091.61 and 625.09 is: 937.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.13 : 2,091.61 = 625.09 : x
  2. Step 2: Convert to fraction form
    1,395.13/2,091.61 = 625.09/x
  3. Step 3: Cross multiply
    1,395.13x = 2,091.61 × 625.09
  4. Step 4: Simplify right side
    1,395.13x = 1,307,444.49
  5. Step 5: Solve for x
    x = 1,307,444.49/1,395.13
  6. Step 6: Final answer
    x = 937.15

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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.