Home / 4,164.50-6,247.18-1,390.44

Finding the Fourth Proportional to 4,164.50, 6,247.18 and 1,390.44

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Solution

The fourth proportional to 4,164.50, 6,247.18 and 1,390.44 is: 2,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,164.50 : 6,247.18 = 1,390.44 : x
  2. Step 2: Convert to fraction form
    4,164.50/6,247.18 = 1,390.44/x
  3. Step 3: Cross multiply
    4,164.50x = 6,247.18 × 1,390.44
  4. Step 4: Simplify right side
    4,164.50x = 8,686,328.96
  5. Step 5: Solve for x
    x = 8,686,328.96/4,164.50
  6. Step 6: Final answer
    x = 2,085.80

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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.