Home / 2,695.86-3,720.06-1,647.72

Finding the Fourth Proportional to 2,695.86, 3,720.06 and 1,647.72

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Solution

The fourth proportional to 2,695.86, 3,720.06 and 1,647.72 is: 2,273.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.86 : 3,720.06 = 1,647.72 : x
  2. Step 2: Convert to fraction form
    2,695.86/3,720.06 = 1,647.72/x
  3. Step 3: Cross multiply
    2,695.86x = 3,720.06 × 1,647.72
  4. Step 4: Simplify right side
    2,695.86x = 6,129,617.26
  5. Step 5: Solve for x
    x = 6,129,617.26/2,695.86
  6. Step 6: Final answer
    x = 2,273.71

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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.