Home / 3,746.88-5,169.60-2,153.28

Finding the Fourth Proportional to 3,746.88, 5,169.60 and 2,153.28

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Solution

The fourth proportional to 3,746.88, 5,169.60 and 2,153.28 is: 2,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.88 : 5,169.60 = 2,153.28 : x
  2. Step 2: Convert to fraction form
    3,746.88/5,169.60 = 2,153.28/x
  3. Step 3: Cross multiply
    3,746.88x = 5,169.60 × 2,153.28
  4. Step 4: Simplify right side
    3,746.88x = 11,131,596.29
  5. Step 5: Solve for x
    x = 11,131,596.29/3,746.88
  6. Step 6: Final answer
    x = 2,970.90

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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.