Home / 2,753.18-4,129.70-673.14

Finding the Fourth Proportional to 2,753.18, 4,129.70 and 673.14

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Solution

The fourth proportional to 2,753.18, 4,129.70 and 673.14 is: 1,009.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.18 : 4,129.70 = 673.14 : x
  2. Step 2: Convert to fraction form
    2,753.18/4,129.70 = 673.14/x
  3. Step 3: Cross multiply
    2,753.18x = 4,129.70 × 673.14
  4. Step 4: Simplify right side
    2,753.18x = 2,779,867.94
  5. Step 5: Solve for x
    x = 2,779,867.94/2,753.18
  6. Step 6: Final answer
    x = 1,009.70

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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.