Home / 2,282.85-3,421.76-1,307.21

Finding the Fourth Proportional to 2,282.85, 3,421.76 and 1,307.21

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Solution

The fourth proportional to 2,282.85, 3,421.76 and 1,307.21 is: 1,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.85 : 3,421.76 = 1,307.21 : x
  2. Step 2: Convert to fraction form
    2,282.85/3,421.76 = 1,307.21/x
  3. Step 3: Cross multiply
    2,282.85x = 3,421.76 × 1,307.21
  4. Step 4: Simplify right side
    2,282.85x = 4,472,935.24
  5. Step 5: Solve for x
    x = 4,472,935.24/2,282.85
  6. Step 6: Final answer
    x = 1,959.36

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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.