Home / 1,433.03-2,148.32-611.28

Finding the Fourth Proportional to 1,433.03, 2,148.32 and 611.28

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Solution

The fourth proportional to 1,433.03, 2,148.32 and 611.28 is: 916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.03 : 2,148.32 = 611.28 : x
  2. Step 2: Convert to fraction form
    1,433.03/2,148.32 = 611.28/x
  3. Step 3: Cross multiply
    1,433.03x = 2,148.32 × 611.28
  4. Step 4: Simplify right side
    1,433.03x = 1,313,226.58
  5. Step 5: Solve for x
    x = 1,313,226.58/1,433.03
  6. Step 6: Final answer
    x = 916.40

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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.