Home / 1,643.84-2,267.66-1,112.75

Finding the Fourth Proportional to 1,643.84, 2,267.66 and 1,112.75

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Solution

The fourth proportional to 1,643.84, 2,267.66 and 1,112.75 is: 1,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.84 : 2,267.66 = 1,112.75 : x
  2. Step 2: Convert to fraction form
    1,643.84/2,267.66 = 1,112.75/x
  3. Step 3: Cross multiply
    1,643.84x = 2,267.66 × 1,112.75
  4. Step 4: Simplify right side
    1,643.84x = 2,523,332.23
  5. Step 5: Solve for x
    x = 2,523,332.23/1,643.84
  6. Step 6: Final answer
    x = 1,535.02

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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.