Home / 3,271.40-4,515-2,095.88

Finding the Fourth Proportional to 3,271.40, 4,515 and 2,095.88

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Solution

The fourth proportional to 3,271.40, 4,515 and 2,095.88 is: 2,892.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.40 : 4,515 = 2,095.88 : x
  2. Step 2: Convert to fraction form
    3,271.40/4,515 = 2,095.88/x
  3. Step 3: Cross multiply
    3,271.40x = 4,515 × 2,095.88
  4. Step 4: Simplify right side
    3,271.40x = 9,462,898.20
  5. Step 5: Solve for x
    x = 9,462,898.20/3,271.40
  6. Step 6: Final answer
    x = 2,892.61

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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.