Home / 3,875.98-5,348.67-2,107.57

Finding the Fourth Proportional to 3,875.98, 5,348.67 and 2,107.57

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Solution

The fourth proportional to 3,875.98, 5,348.67 and 2,107.57 is: 2,908.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.98 : 5,348.67 = 2,107.57 : x
  2. Step 2: Convert to fraction form
    3,875.98/5,348.67 = 2,107.57/x
  3. Step 3: Cross multiply
    3,875.98x = 5,348.67 × 2,107.57
  4. Step 4: Simplify right side
    3,875.98x = 11,272,696.43
  5. Step 5: Solve for x
    x = 11,272,696.43/3,875.98
  6. Step 6: Final answer
    x = 2,908.35

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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.