Home / 2,615.79-3,923.99-1,154.76

Finding the Fourth Proportional to 2,615.79, 3,923.99 and 1,154.76

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Solution

The fourth proportional to 2,615.79, 3,923.99 and 1,154.76 is: 1,732.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.79 : 3,923.99 = 1,154.76 : x
  2. Step 2: Convert to fraction form
    2,615.79/3,923.99 = 1,154.76/x
  3. Step 3: Cross multiply
    2,615.79x = 3,923.99 × 1,154.76
  4. Step 4: Simplify right side
    2,615.79x = 4,531,266.69
  5. Step 5: Solve for x
    x = 4,531,266.69/2,615.79
  6. Step 6: Final answer
    x = 1,732.27

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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.