Home / 4,155.90-5,735.27-2,387.86

Finding the Fourth Proportional to 4,155.90, 5,735.27 and 2,387.86

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Solution

The fourth proportional to 4,155.90, 5,735.27 and 2,387.86 is: 3,295.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.90 : 5,735.27 = 2,387.86 : x
  2. Step 2: Convert to fraction form
    4,155.90/5,735.27 = 2,387.86/x
  3. Step 3: Cross multiply
    4,155.90x = 5,735.27 × 2,387.86
  4. Step 4: Simplify right side
    4,155.90x = 13,695,021.82
  5. Step 5: Solve for x
    x = 13,695,021.82/4,155.90
  6. Step 6: Final answer
    x = 3,295.32

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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.