Home / 1,646.28-2,270.88-1,543.32

Finding the Fourth Proportional to 1,646.28, 2,270.88 and 1,543.32

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Solution

The fourth proportional to 1,646.28, 2,270.88 and 1,543.32 is: 2,128.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.28 : 2,270.88 = 1,543.32 : x
  2. Step 2: Convert to fraction form
    1,646.28/2,270.88 = 1,543.32/x
  3. Step 3: Cross multiply
    1,646.28x = 2,270.88 × 1,543.32
  4. Step 4: Simplify right side
    1,646.28x = 3,504,694.52
  5. Step 5: Solve for x
    x = 3,504,694.52/1,646.28
  6. Step 6: Final answer
    x = 2,128.86

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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.