Home / 5,690.30-8,534.37-1,991.66

Finding the Fourth Proportional to 5,690.30, 8,534.37 and 1,991.66

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Solution

The fourth proportional to 5,690.30, 8,534.37 and 1,991.66 is: 2,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.30 : 8,534.37 = 1,991.66 : x
  2. Step 2: Convert to fraction form
    5,690.30/8,534.37 = 1,991.66/x
  3. Step 3: Cross multiply
    5,690.30x = 8,534.37 × 1,991.66
  4. Step 4: Simplify right side
    5,690.30x = 16,997,563.35
  5. Step 5: Solve for x
    x = 16,997,563.35/5,690.30
  6. Step 6: Final answer
    x = 2,987.11

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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.