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Finding the Fourth Proportional to 5,670.90, 8,506.37 and 1,722.20

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Solution

The fourth proportional to 5,670.90, 8,506.37 and 1,722.20 is: 2,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670.90 : 8,506.37 = 1,722.20 : x
  2. Step 2: Convert to fraction form
    5,670.90/8,506.37 = 1,722.20/x
  3. Step 3: Cross multiply
    5,670.90x = 8,506.37 × 1,722.20
  4. Step 4: Simplify right side
    5,670.90x = 14,649,619.27
  5. Step 5: Solve for x
    x = 14,649,619.27/5,670.90
  6. Step 6: Final answer
    x = 2,583.30

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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.