Home / 1,829.28-2,744.53-1,215.40

Finding the Fourth Proportional to 1,829.28, 2,744.53 and 1,215.40

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Solution

The fourth proportional to 1,829.28, 2,744.53 and 1,215.40 is: 1,823.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,829.28 : 2,744.53 = 1,215.40 : x
  2. Step 2: Convert to fraction form
    1,829.28/2,744.53 = 1,215.40/x
  3. Step 3: Cross multiply
    1,829.28x = 2,744.53 × 1,215.40
  4. Step 4: Simplify right side
    1,829.28x = 3,335,701.76
  5. Step 5: Solve for x
    x = 3,335,701.76/1,829.28
  6. Step 6: Final answer
    x = 1,823.51

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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.