Home / 1,643.28-2,267.76-944.70

Finding the Fourth Proportional to 1,643.28, 2,267.76 and 944.70

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Solution

The fourth proportional to 1,643.28, 2,267.76 and 944.70 is: 1,303.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.28 : 2,267.76 = 944.70 : x
  2. Step 2: Convert to fraction form
    1,643.28/2,267.76 = 944.70/x
  3. Step 3: Cross multiply
    1,643.28x = 2,267.76 × 944.70
  4. Step 4: Simplify right side
    1,643.28x = 2,142,352.87
  5. Step 5: Solve for x
    x = 2,142,352.87/1,643.28
  6. Step 6: Final answer
    x = 1,303.71

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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.