Home / 2,068.18-2,853.24-1,321.90

Finding the Fourth Proportional to 2,068.18, 2,853.24 and 1,321.90

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Solution

The fourth proportional to 2,068.18, 2,853.24 and 1,321.90 is: 1,823.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.18 : 2,853.24 = 1,321.90 : x
  2. Step 2: Convert to fraction form
    2,068.18/2,853.24 = 1,321.90/x
  3. Step 3: Cross multiply
    2,068.18x = 2,853.24 × 1,321.90
  4. Step 4: Simplify right side
    2,068.18x = 3,771,697.96
  5. Step 5: Solve for x
    x = 3,771,697.96/2,068.18
  6. Step 6: Final answer
    x = 1,823.68

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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.