Home / 1,442.41-2,160.61-1,338.63

Finding the Fourth Proportional to 1,442.41, 2,160.61 and 1,338.63

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Solution

The fourth proportional to 1,442.41, 2,160.61 and 1,338.63 is: 2,005.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.41 : 2,160.61 = 1,338.63 : x
  2. Step 2: Convert to fraction form
    1,442.41/2,160.61 = 1,338.63/x
  3. Step 3: Cross multiply
    1,442.41x = 2,160.61 × 1,338.63
  4. Step 4: Simplify right side
    1,442.41x = 2,892,259.42
  5. Step 5: Solve for x
    x = 2,892,259.42/1,442.41
  6. Step 6: Final answer
    x = 2,005.16

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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.