Home / 3,167.70-4,368.59-2,638.34

Finding the Fourth Proportional to 3,167.70, 4,368.59 and 2,638.34

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Solution

The fourth proportional to 3,167.70, 4,368.59 and 2,638.34 is: 3,638.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.70 : 4,368.59 = 2,638.34 : x
  2. Step 2: Convert to fraction form
    3,167.70/4,368.59 = 2,638.34/x
  3. Step 3: Cross multiply
    3,167.70x = 4,368.59 × 2,638.34
  4. Step 4: Simplify right side
    3,167.70x = 11,525,825.74
  5. Step 5: Solve for x
    x = 11,525,825.74/3,167.70
  6. Step 6: Final answer
    x = 3,638.55

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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.