Home / 1,188.07-1,782.20-322.37

Finding the Fourth Proportional to 1,188.07, 1,782.20 and 322.37

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Solution

The fourth proportional to 1,188.07, 1,782.20 and 322.37 is: 483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188.07 : 1,782.20 = 322.37 : x
  2. Step 2: Convert to fraction form
    1,188.07/1,782.20 = 322.37/x
  3. Step 3: Cross multiply
    1,188.07x = 1,782.20 × 322.37
  4. Step 4: Simplify right side
    1,188.07x = 574,526.20
  5. Step 5: Solve for x
    x = 574,526.20/1,188.07
  6. Step 6: Final answer
    x = 483.58

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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.