Home / 4,193.88-6,291.50-1,420.87

Finding the Fourth Proportional to 4,193.88, 6,291.50 and 1,420.87

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Solution

The fourth proportional to 4,193.88, 6,291.50 and 1,420.87 is: 2,131.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,193.88 : 6,291.50 = 1,420.87 : x
  2. Step 2: Convert to fraction form
    4,193.88/6,291.50 = 1,420.87/x
  3. Step 3: Cross multiply
    4,193.88x = 6,291.50 × 1,420.87
  4. Step 4: Simplify right side
    4,193.88x = 8,939,378.87
  5. Step 5: Solve for x
    x = 8,939,378.87/4,193.88
  6. Step 6: Final answer
    x = 2,131.53

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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.