Home / 2,102.76-3,154.55-1,007.03

Finding the Fourth Proportional to 2,102.76, 3,154.55 and 1,007.03

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Solution

The fourth proportional to 2,102.76, 3,154.55 and 1,007.03 is: 1,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.76 : 3,154.55 = 1,007.03 : x
  2. Step 2: Convert to fraction form
    2,102.76/3,154.55 = 1,007.03/x
  3. Step 3: Cross multiply
    2,102.76x = 3,154.55 × 1,007.03
  4. Step 4: Simplify right side
    2,102.76x = 3,176,729.34
  5. Step 5: Solve for x
    x = 3,176,729.34/2,102.76
  6. Step 6: Final answer
    x = 1,510.74

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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.