Home / 5,805.81-8,011.89-3,153.15

Finding the Fourth Proportional to 5,805.81, 8,011.89 and 3,153.15

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Solution

The fourth proportional to 5,805.81, 8,011.89 and 3,153.15 is: 4,351.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.81 : 8,011.89 = 3,153.15 : x
  2. Step 2: Convert to fraction form
    5,805.81/8,011.89 = 3,153.15/x
  3. Step 3: Cross multiply
    5,805.81x = 8,011.89 × 3,153.15
  4. Step 4: Simplify right side
    5,805.81x = 25,262,690.95
  5. Step 5: Solve for x
    x = 25,262,690.95/5,805.81
  6. Step 6: Final answer
    x = 4,351.28

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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.