Home / 1,395.36-2,091.24-1,045.96

Finding the Fourth Proportional to 1,395.36, 2,091.24 and 1,045.96

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Solution

The fourth proportional to 1,395.36, 2,091.24 and 1,045.96 is: 1,567.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.36 : 2,091.24 = 1,045.96 : x
  2. Step 2: Convert to fraction form
    1,395.36/2,091.24 = 1,045.96/x
  3. Step 3: Cross multiply
    1,395.36x = 2,091.24 × 1,045.96
  4. Step 4: Simplify right side
    1,395.36x = 2,187,353.39
  5. Step 5: Solve for x
    x = 2,187,353.39/1,395.36
  6. Step 6: Final answer
    x = 1,567.59

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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.