Home / 2,720.24-3,755.32-1,672.91

Finding the Fourth Proportional to 2,720.24, 3,755.32 and 1,672.91

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Solution

The fourth proportional to 2,720.24, 3,755.32 and 1,672.91 is: 2,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.24 : 3,755.32 = 1,672.91 : x
  2. Step 2: Convert to fraction form
    2,720.24/3,755.32 = 1,672.91/x
  3. Step 3: Cross multiply
    2,720.24x = 3,755.32 × 1,672.91
  4. Step 4: Simplify right side
    2,720.24x = 6,282,312.38
  5. Step 5: Solve for x
    x = 6,282,312.38/2,720.24
  6. Step 6: Final answer
    x = 2,309.47

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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.