Home / 2,731.08-3,768.48-2,637.66

Finding the Fourth Proportional to 2,731.08, 3,768.48 and 2,637.66

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Solution

The fourth proportional to 2,731.08, 3,768.48 and 2,637.66 is: 3,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.08 : 3,768.48 = 2,637.66 : x
  2. Step 2: Convert to fraction form
    2,731.08/3,768.48 = 2,637.66/x
  3. Step 3: Cross multiply
    2,731.08x = 3,768.48 × 2,637.66
  4. Step 4: Simplify right side
    2,731.08x = 9,939,968.96
  5. Step 5: Solve for x
    x = 9,939,968.96/2,731.08
  6. Step 6: Final answer
    x = 3,639.57

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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.