Home / 1,376.08-2,062.67-451.40

Finding the Fourth Proportional to 1,376.08, 2,062.67 and 451.40

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Solution

The fourth proportional to 1,376.08, 2,062.67 and 451.40 is: 676.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.08 : 2,062.67 = 451.40 : x
  2. Step 2: Convert to fraction form
    1,376.08/2,062.67 = 451.40/x
  3. Step 3: Cross multiply
    1,376.08x = 2,062.67 × 451.40
  4. Step 4: Simplify right side
    1,376.08x = 931,078.92
  5. Step 5: Solve for x
    x = 931,078.92/1,376.08
  6. Step 6: Final answer
    x = 676.62

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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.