Home / 2,167.36-2,988.48-1,725.28

Finding the Fourth Proportional to 2,167.36, 2,988.48 and 1,725.28

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Solution

The fourth proportional to 2,167.36, 2,988.48 and 1,725.28 is: 2,378.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.36 : 2,988.48 = 1,725.28 : x
  2. Step 2: Convert to fraction form
    2,167.36/2,988.48 = 1,725.28/x
  3. Step 3: Cross multiply
    2,167.36x = 2,988.48 × 1,725.28
  4. Step 4: Simplify right side
    2,167.36x = 5,155,964.77
  5. Step 5: Solve for x
    x = 5,155,964.77/2,167.36
  6. Step 6: Final answer
    x = 2,378.91

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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.