Home / 4,196.21-6,290.38-1,420.94

Finding the Fourth Proportional to 4,196.21, 6,290.38 and 1,420.94

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Solution

The fourth proportional to 4,196.21, 6,290.38 and 1,420.94 is: 2,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,196.21 : 6,290.38 = 1,420.94 : x
  2. Step 2: Convert to fraction form
    4,196.21/6,290.38 = 1,420.94/x
  3. Step 3: Cross multiply
    4,196.21x = 6,290.38 × 1,420.94
  4. Step 4: Simplify right side
    4,196.21x = 8,938,252.56
  5. Step 5: Solve for x
    x = 8,938,252.56/4,196.21
  6. Step 6: Final answer
    x = 2,130.08

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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.