Home / 2,697.76-4,045.26-1,381.30

Finding the Fourth Proportional to 2,697.76, 4,045.26 and 1,381.30

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Solution

The fourth proportional to 2,697.76, 4,045.26 and 1,381.30 is: 2,071.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.76 : 4,045.26 = 1,381.30 : x
  2. Step 2: Convert to fraction form
    2,697.76/4,045.26 = 1,381.30/x
  3. Step 3: Cross multiply
    2,697.76x = 4,045.26 × 1,381.30
  4. Step 4: Simplify right side
    2,697.76x = 5,587,717.64
  5. Step 5: Solve for x
    x = 5,587,717.64/2,697.76
  6. Step 6: Final answer
    x = 2,071.24

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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.