Home / 1,433.71-2,159.62-1,281.43

Finding the Fourth Proportional to 1,433.71, 2,159.62 and 1,281.43

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Solution

The fourth proportional to 1,433.71, 2,159.62 and 1,281.43 is: 1,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.71 : 2,159.62 = 1,281.43 : x
  2. Step 2: Convert to fraction form
    1,433.71/2,159.62 = 1,281.43/x
  3. Step 3: Cross multiply
    1,433.71x = 2,159.62 × 1,281.43
  4. Step 4: Simplify right side
    1,433.71x = 2,767,401.86
  5. Step 5: Solve for x
    x = 2,767,401.86/1,433.71
  6. Step 6: Final answer
    x = 1,930.24

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.