Home / 1,376.89-2,065.35-1,102.63

Finding the Fourth Proportional to 1,376.89, 2,065.35 and 1,102.63

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Solution

The fourth proportional to 1,376.89, 2,065.35 and 1,102.63 is: 1,653.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.89 : 2,065.35 = 1,102.63 : x
  2. Step 2: Convert to fraction form
    1,376.89/2,065.35 = 1,102.63/x
  3. Step 3: Cross multiply
    1,376.89x = 2,065.35 × 1,102.63
  4. Step 4: Simplify right side
    1,376.89x = 2,277,316.87
  5. Step 5: Solve for x
    x = 2,277,316.87/1,376.89
  6. Step 6: Final answer
    x = 1,653.96

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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.