Home / 4,343.42-6,515.72-1,420.76

Finding the Fourth Proportional to 4,343.42, 6,515.72 and 1,420.76

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Solution

The fourth proportional to 4,343.42, 6,515.72 and 1,420.76 is: 2,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,343.42 : 6,515.72 = 1,420.76 : x
  2. Step 2: Convert to fraction form
    4,343.42/6,515.72 = 1,420.76/x
  3. Step 3: Cross multiply
    4,343.42x = 6,515.72 × 1,420.76
  4. Step 4: Simplify right side
    4,343.42x = 9,257,245.32
  5. Step 5: Solve for x
    x = 9,257,245.32/4,343.42
  6. Step 6: Final answer
    x = 2,131.33

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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.