Home / 1,423.36-1,967.28-1,073.44

Finding the Fourth Proportional to 1,423.36, 1,967.28 and 1,073.44

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Solution

The fourth proportional to 1,423.36, 1,967.28 and 1,073.44 is: 1,483.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.36 : 1,967.28 = 1,073.44 : x
  2. Step 2: Convert to fraction form
    1,423.36/1,967.28 = 1,073.44/x
  3. Step 3: Cross multiply
    1,423.36x = 1,967.28 × 1,073.44
  4. Step 4: Simplify right side
    1,423.36x = 2,111,757.04
  5. Step 5: Solve for x
    x = 2,111,757.04/1,423.36
  6. Step 6: Final answer
    x = 1,483.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.