Home / 5,275.23-7,910.09-2,639.89

Finding the Fourth Proportional to 5,275.23, 7,910.09 and 2,639.89

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Solution

The fourth proportional to 5,275.23, 7,910.09 and 2,639.89 is: 3,958.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.23 : 7,910.09 = 2,639.89 : x
  2. Step 2: Convert to fraction form
    5,275.23/7,910.09 = 2,639.89/x
  3. Step 3: Cross multiply
    5,275.23x = 7,910.09 × 2,639.89
  4. Step 4: Simplify right side
    5,275.23x = 20,881,767.49
  5. Step 5: Solve for x
    x = 20,881,767.49/5,275.23
  6. Step 6: Final answer
    x = 3,958.46

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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.