Home / 5,679.35-7,837.62-3,161.55

Finding the Fourth Proportional to 5,679.35, 7,837.62 and 3,161.55

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Solution

The fourth proportional to 5,679.35, 7,837.62 and 3,161.55 is: 4,363.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.35 : 7,837.62 = 3,161.55 : x
  2. Step 2: Convert to fraction form
    5,679.35/7,837.62 = 3,161.55/x
  3. Step 3: Cross multiply
    5,679.35x = 7,837.62 × 3,161.55
  4. Step 4: Simplify right side
    5,679.35x = 24,779,027.51
  5. Step 5: Solve for x
    x = 24,779,027.51/5,679.35
  6. Step 6: Final answer
    x = 4,363.00

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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.