Home / 1,771.36-2,643.64-1,725.28

Finding the Fourth Proportional to 1,771.36, 2,643.64 and 1,725.28

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Solution

The fourth proportional to 1,771.36, 2,643.64 and 1,725.28 is: 2,574.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.36 : 2,643.64 = 1,725.28 : x
  2. Step 2: Convert to fraction form
    1,771.36/2,643.64 = 1,725.28/x
  3. Step 3: Cross multiply
    1,771.36x = 2,643.64 × 1,725.28
  4. Step 4: Simplify right side
    1,771.36x = 4,561,019.22
  5. Step 5: Solve for x
    x = 4,561,019.22/1,771.36
  6. Step 6: Final answer
    x = 2,574.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.