Home / 5,290.77-7,303.97-3,872.88

Finding the Fourth Proportional to 5,290.77, 7,303.97 and 3,872.88

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Solution

The fourth proportional to 5,290.77, 7,303.97 and 3,872.88 is: 5,346.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.77 : 7,303.97 = 3,872.88 : x
  2. Step 2: Convert to fraction form
    5,290.77/7,303.97 = 3,872.88/x
  3. Step 3: Cross multiply
    5,290.77x = 7,303.97 × 3,872.88
  4. Step 4: Simplify right side
    5,290.77x = 28,287,379.97
  5. Step 5: Solve for x
    x = 28,287,379.97/5,290.77
  6. Step 6: Final answer
    x = 5,346.55

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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.