Home / 5,276.23-7,911.59-2,640.89

Finding the Fourth Proportional to 5,276.23, 7,911.59 and 2,640.89

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Solution

The fourth proportional to 5,276.23, 7,911.59 and 2,640.89 is: 3,959.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.23 : 7,911.59 = 2,640.89 : x
  2. Step 2: Convert to fraction form
    5,276.23/7,911.59 = 2,640.89/x
  3. Step 3: Cross multiply
    5,276.23x = 7,911.59 × 2,640.89
  4. Step 4: Simplify right side
    5,276.23x = 20,893,638.92
  5. Step 5: Solve for x
    x = 20,893,638.92/5,276.23
  6. Step 6: Final answer
    x = 3,959.96

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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.