Home / 5,291.19-7,930.84-2,515.59

Finding the Fourth Proportional to 5,291.19, 7,930.84 and 2,515.59

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Solution

The fourth proportional to 5,291.19, 7,930.84 and 2,515.59 is: 3,770.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.19 : 7,930.84 = 2,515.59 : x
  2. Step 2: Convert to fraction form
    5,291.19/7,930.84 = 2,515.59/x
  3. Step 3: Cross multiply
    5,291.19x = 7,930.84 × 2,515.59
  4. Step 4: Simplify right side
    5,291.19x = 19,950,741.80
  5. Step 5: Solve for x
    x = 19,950,741.80/5,291.19
  6. Step 6: Final answer
    x = 3,770.56

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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.