Home / 8,214.48-12,321.36-2,291.40

Finding the Fourth Proportional to 8,214.48, 12,321.36 and 2,291.40

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Solution

The fourth proportional to 8,214.48, 12,321.36 and 2,291.40 is: 3,437.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.48 : 12,321.36 = 2,291.40 : x
  2. Step 2: Convert to fraction form
    8,214.48/12,321.36 = 2,291.40/x
  3. Step 3: Cross multiply
    8,214.48x = 12,321.36 × 2,291.40
  4. Step 4: Simplify right side
    8,214.48x = 28,233,164.30
  5. Step 5: Solve for x
    x = 28,233,164.30/8,214.48
  6. Step 6: Final answer
    x = 3,437.00

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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.