Home / 1,643.07-2,263.58-1,144.81

Finding the Fourth Proportional to 1,643.07, 2,263.58 and 1,144.81

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Solution

The fourth proportional to 1,643.07, 2,263.58 and 1,144.81 is: 1,577.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.07 : 2,263.58 = 1,144.81 : x
  2. Step 2: Convert to fraction form
    1,643.07/2,263.58 = 1,144.81/x
  3. Step 3: Cross multiply
    1,643.07x = 2,263.58 × 1,144.81
  4. Step 4: Simplify right side
    1,643.07x = 2,591,357.70
  5. Step 5: Solve for x
    x = 2,591,357.70/1,643.07
  6. Step 6: Final answer
    x = 1,577.14

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1.5x scale

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.