Home / 1,215.04-1,820.97-882.60

Finding the Fourth Proportional to 1,215.04, 1,820.97 and 882.60

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Solution

The fourth proportional to 1,215.04, 1,820.97 and 882.60 is: 1,322.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.04 : 1,820.97 = 882.60 : x
  2. Step 2: Convert to fraction form
    1,215.04/1,820.97 = 882.60/x
  3. Step 3: Cross multiply
    1,215.04x = 1,820.97 × 882.60
  4. Step 4: Simplify right side
    1,215.04x = 1,607,188.12
  5. Step 5: Solve for x
    x = 1,607,188.12/1,215.04
  6. Step 6: Final answer
    x = 1,322.75

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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.