Home / 1,433.54-2,148.28-1,259.80

Finding the Fourth Proportional to 1,433.54, 2,148.28 and 1,259.80

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Solution

The fourth proportional to 1,433.54, 2,148.28 and 1,259.80 is: 1,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.54 : 2,148.28 = 1,259.80 : x
  2. Step 2: Convert to fraction form
    1,433.54/2,148.28 = 1,259.80/x
  3. Step 3: Cross multiply
    1,433.54x = 2,148.28 × 1,259.80
  4. Step 4: Simplify right side
    1,433.54x = 2,706,403.14
  5. Step 5: Solve for x
    x = 2,706,403.14/1,433.54
  6. Step 6: Final answer
    x = 1,887.92

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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.