Home / 4,930.55-7,396.88-1,420.53

Finding the Fourth Proportional to 4,930.55, 7,396.88 and 1,420.53

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Solution

The fourth proportional to 4,930.55, 7,396.88 and 1,420.53 is: 2,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.55 : 7,396.88 = 1,420.53 : x
  2. Step 2: Convert to fraction form
    4,930.55/7,396.88 = 1,420.53/x
  3. Step 3: Cross multiply
    4,930.55x = 7,396.88 × 1,420.53
  4. Step 4: Simplify right side
    4,930.55x = 10,507,482.84
  5. Step 5: Solve for x
    x = 10,507,482.84/4,930.55
  6. Step 6: Final answer
    x = 2,131.10

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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.