Home / 1,316.21-1,974.17-882.45

Finding the Fourth Proportional to 1,316.21, 1,974.17 and 882.45

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Solution

The fourth proportional to 1,316.21, 1,974.17 and 882.45 is: 1,323.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.21 : 1,974.17 = 882.45 : x
  2. Step 2: Convert to fraction form
    1,316.21/1,974.17 = 882.45/x
  3. Step 3: Cross multiply
    1,316.21x = 1,974.17 × 882.45
  4. Step 4: Simplify right side
    1,316.21x = 1,742,101.90
  5. Step 5: Solve for x
    x = 1,742,101.90/1,316.21
  6. Step 6: Final answer
    x = 1,323.58

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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.