Home / 7,142.31-10,717.02-2,762.82

Finding the Fourth Proportional to 7,142.31, 10,717.02 and 2,762.82

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Solution

The fourth proportional to 7,142.31, 10,717.02 and 2,762.82 is: 4,145.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.31 : 10,717.02 = 2,762.82 : x
  2. Step 2: Convert to fraction form
    7,142.31/10,717.02 = 2,762.82/x
  3. Step 3: Cross multiply
    7,142.31x = 10,717.02 × 2,762.82
  4. Step 4: Simplify right side
    7,142.31x = 29,609,197.20
  5. Step 5: Solve for x
    x = 29,609,197.20/7,142.31
  6. Step 6: Final answer
    x = 4,145.61

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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.