Home / 3,735.60-5,155.80-2,164.56

Finding the Fourth Proportional to 3,735.60, 5,155.80 and 2,164.56

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Solution

The fourth proportional to 3,735.60, 5,155.80 and 2,164.56 is: 2,987.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,735.60 : 5,155.80 = 2,164.56 : x
  2. Step 2: Convert to fraction form
    3,735.60/5,155.80 = 2,164.56/x
  3. Step 3: Cross multiply
    3,735.60x = 5,155.80 × 2,164.56
  4. Step 4: Simplify right side
    3,735.60x = 11,160,038.45
  5. Step 5: Solve for x
    x = 11,160,038.45/3,735.60
  6. Step 6: Final answer
    x = 2,987.48

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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.