Home / 4,139.20-6,213.20-1,675.72

Finding the Fourth Proportional to 4,139.20, 6,213.20 and 1,675.72

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Solution

The fourth proportional to 4,139.20, 6,213.20 and 1,675.72 is: 2,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.20 : 6,213.20 = 1,675.72 : x
  2. Step 2: Convert to fraction form
    4,139.20/6,213.20 = 1,675.72/x
  3. Step 3: Cross multiply
    4,139.20x = 6,213.20 × 1,675.72
  4. Step 4: Simplify right side
    4,139.20x = 10,411,583.50
  5. Step 5: Solve for x
    x = 10,411,583.50/4,139.20
  6. Step 6: Final answer
    x = 2,515.36

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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.