Home / 2,642.72-3,961.21-1,718.93

Finding the Fourth Proportional to 2,642.72, 3,961.21 and 1,718.93

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Solution

The fourth proportional to 2,642.72, 3,961.21 and 1,718.93 is: 2,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.72 : 3,961.21 = 1,718.93 : x
  2. Step 2: Convert to fraction form
    2,642.72/3,961.21 = 1,718.93/x
  3. Step 3: Cross multiply
    2,642.72x = 3,961.21 × 1,718.93
  4. Step 4: Simplify right side
    2,642.72x = 6,809,042.71
  5. Step 5: Solve for x
    x = 6,809,042.71/2,642.72
  6. Step 6: Final answer
    x = 2,576.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.