Home / 1,605.36-2,212.68-1,133.36

Finding the Fourth Proportional to 1,605.36, 2,212.68 and 1,133.36

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Solution

The fourth proportional to 1,605.36, 2,212.68 and 1,133.36 is: 1,562.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605.36 : 2,212.68 = 1,133.36 : x
  2. Step 2: Convert to fraction form
    1,605.36/2,212.68 = 1,133.36/x
  3. Step 3: Cross multiply
    1,605.36x = 2,212.68 × 1,133.36
  4. Step 4: Simplify right side
    1,605.36x = 2,507,763.00
  5. Step 5: Solve for x
    x = 2,507,763.00/1,605.36
  6. Step 6: Final answer
    x = 1,562.12

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1.5x scale

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.